Package 'OmnipathR'

Title: OmniPath web service client and more
Description: A client for the OmniPath web service (https://www.omnipathdb.org) and many other resources. It also includes functions to transform and pretty print some of the downloaded data, functions to access a number of other resources such as BioPlex, ConsensusPathDB, EVEX, Gene Ontology, Guide to Pharmacology (IUPHAR/BPS), Harmonizome, HTRIdb, Human Phenotype Ontology, InWeb InBioMap, KEGG Pathway, Pathway Commons, Ramilowski et al. 2015, RegNetwork, ReMap, TF census, TRRUST and Vinayagam et al. 2011. Furthermore, OmnipathR features a close integration with the NicheNet method for ligand activity prediction from transcriptomics data, and its R implementation `nichenetr` (available only on github).
Authors: Alberto Valdeolivas [aut] , Denes Turei [cre, aut] , Attila Gabor [aut] , Diego Mananes [aut] , Aurelien Dugourd [aut]
Maintainer: Denes Turei <[email protected]>
License: MIT + file LICENSE
Version: 3.15.0
Built: 2024-11-18 03:38:38 UTC
Source: https://github.com/bioc/OmnipathR

Help Index


Default values for the package options

Description

These options describe the default settings for OmnipathR so you do not need to pass these parameters at each function call. Currently the only option useful for the public web service at omnipathdb.org is “omnipathr.license“. If you are a for-profit user set it to “'commercial'“ to make sure all the data you download from OmniPath is legally allowed for commercial use. Otherwise just leave it as it is: “'academic'“. If you don't use omnipathdb.org but within your organization you deployed your own pypath server and want to share data whith a limited availability to outside users, you may want to use a password. For this you can use the “omnipathr.password“ option. Also if you want the R package to work from another pypath server instead of omnipathdb.org, you can change the option “omnipathr.url“.

Usage

.omnipathr_options_defaults

Format

An object of class list of length 25.

Value

Nothing, this is not a function but a list.


All UniProt ACs for one organism

Description

All UniProt ACs for one organism

Usage

all_uniprot_acs(organism = 9606, reviewed = TRUE)

Arguments

organism

Character or integer: name or identifier of the organism.

reviewed

Retrieve only reviewed ('TRUE'), only unreviewed ('FALSE') or both ('NULL').

Value

Character vector of UniProt accession numbers.

Examples

human_swissprot_acs <- all_uniprot_acs()
human_swissprot_acs[1:5]
# [1] "P51451" "A6H8Y1" "O60885" "Q9Y3X0" "P22223"
length(human_swissprot_acs)
# [1] 20376
mouse_swissprot_acs <- all_uniprot_acs("mouse")

A table with all UniProt records

Description

Retrieves a table from UniProt with all proteins for a certain organism.

Usage

all_uniprots(fields = "accession", reviewed = TRUE, organism = 9606L)

Arguments

fields

Character vector of fields as defined by UniProt. For possible values please refer to https://www.uniprot.org/help/return_fields

reviewed

Retrieve only reviewed ('TRUE'), only unreviewed ('FALSE') or both ('NULL').

organism

Character or integer: name or identifier of the organism.

Value

Data frame (tibble) with the requested UniProt entries and fields.

Examples

human_swissprot_entries <- all_uniprots(fields = 'id')
human_swissprot_entries
# # A tibble: 20,396 x 1
#    `Entry name`
#    <chr>
#  1 OR4K3_HUMAN
#  2 O52A1_HUMAN
#  3 O2AG1_HUMAN
#  4 O10S1_HUMAN
#  5 O11G2_HUMAN
# # . with 20,386 more rows

All ancestors in the ontology tree

Description

Starting from the selected nodes, recursively walks the ontology tree until it reaches the root. Collects all visited nodes, which are the ancestors (parents) of the starting nodes.

Usage

ancestors(
  terms,
  db_key = "go_basic",
  ids = TRUE,
  relations = c("is_a", "part_of", "occurs_in", "regulates", "positively_regulates",
    "negatively_regulates")
)

Arguments

terms

Character vector of ontology term IDs or names. A mixture of IDs and names can be provided.

db_key

Character: key to identify the ontology database. For the available keys see omnipath_show_db.

ids

Logical: whether to return IDs or term names.

relations

Character vector of ontology relation types. Only these relations will be used.

Details

Note: this function relies on the database manager, the first call might take long because of the database load process. Subsequent calls within a short period should be faster. See get_ontology_db.

Value

Character vector of ontology IDs. If the input terms are all root nodes, NULL is returned. The starting nodes won't be included in the result unless some of them are ancestors of other starting nodes.

Examples

ancestors('GO:0005035', ids = FALSE)
# [1] "molecular_function"
# [2] "transmembrane signaling receptor activity"
# [3] "signaling receptor activity"
# [4] "molecular transducer activity"

Network interactions with annotations

Description

Annotations are often useful in a network context, e.g. one might want to label the interacting partners by their pathway membership. This function takes a network data frame and joins an annotation data frame from both the left and the right side, so both the source and target molecular entities will be labeled by their annotations. If one entity has many annotations these will yield many rows, hence the interacting pairs won't be unique across the data frame any more. Also if one entity has really many annotations the resulting data frame might be huge, we recommend to be careful with that. Finally, if you want to do the same but with intercell annotations, there is the import_intercell_network function.

Usage

annotated_network(
  network = NULL,
  annot = NULL,
  network_args = list(),
  annot_args = list(),
  ...
)

Arguments

network

Behaviour depends on type: if list, will be passed as arguments to omnipath_interactions to obtain a network data frame; if a data frame or tibble, it will be used as a network data frame; if a character vector, will be assumed to be a set of resource names and interactions will be queried from these resources.

annot

Either the name of an annotation resource (for a list of available resources call annotation_resources), or an annotation data frame. If the data frame contains more than one resources, only the first one will be used.

network_args

List: if 'network' is a resource name, pass these additional arguments to omnipath_interactions.

annot_args

List: if 'annot' is a resource name, pass these additional arguments to annotations.

...

Column names selected from the annotation data frame (passed to dplyr::select, if empty all columns will be selected.)

Value

A data frame of interactions with annotations for both interacting entities.

Examples

signalink_with_pathways <-
    annotated_network("SignaLink3", "SignaLink_pathway")

Annotation categories and resources

Description

A full list of annotation resources, keys and values.

Usage

annotation_categories()

Value

A data frame with resource names, annotation key labels and for each key all possible values.

Examples

annot_cat <- annotation_categories()
annot_cat
# # A tibble: 46,307 x 3
#    source           label    value
#    <chr>            <chr>    <chr>
#  1 connectomeDB2020 role     ligand
#  2 connectomeDB2020 role     receptor
#  3 connectomeDB2020 location ECM
#  4 connectomeDB2020 location plasma membrane
#  5 connectomeDB2020 location secreted
#  6 KEGG-PC          pathway  Alanine, aspartate and glutamate metabolism
#  7 KEGG-PC          pathway  Amino sugar and nucleotide sugar metabolism
#  8 KEGG-PC          pathway  Aminoacyl-tRNA biosynthesis
#  9 KEGG-PC          pathway  Arachidonic acid metabolism
# 10 KEGG-PC          pathway  Arginine and proline metabolism

Retrieves a list of available resources in the annotations database of OmniPath

Description

Get the names of the resources from https://omnipathdb.org/annotations.

Usage

annotation_resources(dataset = NULL, ...)

Arguments

dataset

ignored for this query type

...

optional additional arguments

Value

character vector with the names of the annotation resources

See Also

Examples

annotation_resources()

Protein and gene annotations from OmniPath

Description

Protein and gene annotations about function, localization, expression, structure and other properties, from the https://omnipathdb.org/annotations endpoint of the OmniPath web service. Note: there might be also a few miRNAs annotated; a vast majority of protein complex annotations are inferred from the annotations of the members: if all members carry the same annotation the complex inherits.

Usage

annotations(proteins = NULL, wide = FALSE, ...)

Arguments

proteins

Vector containing the genes or proteins for whom annotations will be retrieved (UniProt IDs or HGNC Gene Symbols or miRBase IDs). It is also possible to donwload annotations for protein complexes. To do so, write 'COMPLEX:' right before the genesymbols of the genes integrating the complex. Check the vignette for examples.

wide

Convert the annotation table to wide format, which corresponds more or less to the original resource. If the data comes from more than one resource a list of wide tables will be returned. See examples at pivot_annotations.

...

Arguments passed on to omnipath_query

organism

Character or integer: name or NCBI Taxonomy ID of the organism. OmniPath is built of human data, and the web service provides orthology translated interactions and enzyme-substrate relationships for mouse and rat. For other organisms and query types, orthology translation will be called automatically on the downloaded human data before returning the result.

resources

Character vector: name of one or more resources. Restrict the data to these resources. For a complete list of available resources, call the '<query_type>_resources' functions for the query type of interst.

genesymbols

Character or logical: TRUE or FALS or "yes" or "no". Include the 'genesymbols' column in the results. OmniPath uses UniProt IDs as the primary identifiers, gene symbols are optional.

fields

Character vector: additional fields to include in the result. For a list of available fields, call 'query_info("interactions")'.

default_fields

Logical: if TRUE, the default fields will be included.

silent

Logical: if TRUE, no messages will be printed. By default a summary message is printed upon successful download.

logicals

Character vector: fields to be cast to logical.

format

Character: if "json", JSON will be retrieved and processed into a nested list; any other value will return data frame.

download_args

List: parameters to pass to the download function, which is 'readr::read_tsv' by default, and 'jsonlite::safe_load'.

add_counts

Logical: if TRUE, the number of references and number of resources for each record will be added to the result.

license

Character: license restrictions. By default, data from resources allowing "academic" use is returned by OmniPath. If you use the data for work in a company, you can provide "commercial" or "for-profit", which will restrict the data to those records which are supported by resources that allow for-profit use.

password

Character: password for the OmniPath web service. You can provide a special password here which enables the use of 'license = "ignore"' option, completely bypassing the license filter.

exclude

Character vector: resource or dataset names to be excluded. The data will be filtered after download to remove records of the excluded datasets and resources.

strict_evidences

Logical: reconstruct the "sources" and "references" columns of interaction data frames based on the "evidences" column, strictly filtering them to the queried datasets and resources. Without this, the "sources" and "references" fields for each record might contain information for datasets and resources other than the queried ones, because the downloaded records are a result of a simple filtering of an already integrated data frame.

genesymbol_resource

Character: "uniprot" (default) or "ensembl". The OmniPath web service uses the primary gene symbols as provided by UniProt. By passing "ensembl" here, the UniProt gene symbols will be replaced by the ones used in Ensembl. This translation results in a loss of a few records, and multiplication of another few records due to ambiguous translation.

cache

Logical: use caching, load data from and save to the. The cache directory by default belongs to the user, located in the user's default cache directory, and named "OmnipathR". Find out about it by getOption("omnipathr.cachedir"). Can be changed by omnipath_set_cachedir.

Details

Downloading the full annotations dataset is disabled by default because the size of this data is around 1GB. We recommend to retrieve the annotations for a set of proteins or only from a few resources, depending on your interest. You can always download the full database from https://archive.omnipathdb.org/omnipath_webservice_annotations__recent.tsv using any standard R or readr method.

Value

A data frame or list of data frames:

  • If wide=FALSE (default), all the requested resources will be in a single long format data frame.

  • If wide=TRUE: one or more data frames with columns specific to the requested resources. If more than one resources is requested a list of data frames is returned.

See Also

Examples

annotations <- annotations(
    proteins = c("TP53", "LMNA"),
    resources = c("HPA_subcellular")
)

Query the Ensembl BioMart web service

Description

Query the Ensembl BioMart web service

Usage

biomart_query(
  attrs = NULL,
  filters = NULL,
  transcript = FALSE,
  peptide = FALSE,
  gene = FALSE,
  dataset = "hsapiens_gene_ensembl"
)

Arguments

attrs

Character vector: one or more Ensembl attribute names.

filters

Character vector: one or more Ensembl filter names.

transcript

Logical: include Ensembl transcript IDs in the result.

peptide

Logical: include Ensembl peptide IDs in the result.

gene

Logical: include Ensembl gene IDs in the result.

dataset

Character: An Ensembl dataset name.

Value

Data frame with the query result

Examples

cel_genes <- biomart_query(
    attrs = c("external_gene_name", "start_position", "end_position"),
    gene = TRUE,
    dataset = "celegans_gene_ensembl"
)
cel_genes
# # A tibble: 46,934 × 4
#   ensembl_gene_id external_gene_name start_position end_position
#   <chr>           <chr>                       <dbl>        <dbl>
# 1 WBGene00000001  aap-1                     5107843      5110183
# 2 WBGene00000002  aat-1                     9599178      9601695
# 3 WBGene00000003  aat-2                     9244402      9246360
# 4 WBGene00000004  aat-3                     2552260      2557736
# 5 WBGene00000005  aat-4                     6272529      6275721
# # . with 46,924 more rows

Downloads all BioPlex interaction datasets

Description

BioPlex provides four interaction datasets: version 1.0, 2.0, 3.0 and HCT116 version 1.0. This function downloads all of them, merges them to one data frame, removes the duplicates (based on unique pairs of UniProt IDs) and separates the isoform numbers from the UniProt IDs. More details at https://bioplex.hms.harvard.edu/interactions.php.

Usage

bioplex_all(unique = TRUE)

Arguments

unique

Logical. Collapse the duplicate interactions into single rows or keep them as they are. In case of merging duplicate records the maximum p value will be choosen for each record.

Value

Data frame (tibble) with interactions.

See Also

Examples

bioplex_interactions <- bioplex_all()
bioplex_interactions
# # A tibble: 195,538 x 11
#    UniprotA IsoformA UniprotB IsoformB GeneA GeneB SymbolA SymbolB
#    <chr>       <int> <chr>       <int> <dbl> <dbl> <chr>   <chr>
#  1 A0AV02          2 Q5K4L6         NA 84561 11000 SLC12A8 SLC27A3
#  2 A0AV02          2 Q8N5V2         NA 84561 25791 SLC12A8 NGEF
#  3 A0AV02          2 Q9H6S3         NA 84561 64787 SLC12A8 EPS8L2
#  4 A0AV96          2 O00425          2 54502 10643 RBM47   IGF2BP3
#  5 A0AV96          2 O00443         NA 54502  5286 RBM47   PIK3C2A
#  6 A0AV96          2 O43426         NA 54502  8867 RBM47   SYNJ1
#  7 A0AV96          2 O75127         NA 54502 26024 RBM47   PTCD1
#  8 A0AV96          2 O95208          2 54502 22905 RBM47   EPN2
#  9 A0AV96          2 O95900         NA 54502 26995 RBM47   TRUB2
# 10 A0AV96          2 P07910          2 54502  3183 RBM47   HNRNPC
# # . with 195,528 more rows, and 3 more variables: p_wrong <dbl>,
# #   p_no_interaction <dbl>, p_interaction <dbl>

Downloads the BioPlex HCT116 version 1.0 interaction dataset

Description

This dataset contains ~71,000 interactions detected in HCT116 cells using 5,522 baits. More details at https://bioplex.hms.harvard.edu/interactions.php.

Usage

bioplex_hct116_1()

Value

Data frame (tibble) with interactions.

See Also

Examples

bioplex_interactions <- bioplex_hct116_1()
nrow(bioplex_interactions)
# [1] 70966
colnames(bioplex_interactions)
# [1] "GeneA"         "GeneB"        "UniprotA"   "UniprotB"
# [5] "SymbolA"       "SymbolB"      "p_wrong"    "p_no_interaction"
# [9] "p_interaction"

Downloads the BioPlex version 1.0 interaction dataset

Description

This dataset contains ~24,000 interactions detected in HEK293T cells using 2,594 baits. More details at https://bioplex.hms.harvard.edu/interactions.php.

Usage

bioplex1()

Value

Data frame (tibble) with interactions.

See Also

Examples

bioplex_interactions <- bioplex1()
nrow(bioplex_interactions)
# [1] 23744
colnames(bioplex_interactions)
# [1] "GeneA"         "GeneB"        "UniprotA"   "UniprotB"
# [5] "SymbolA"       "SymbolB"      "p_wrong"    "p_no_interaction"
# [9] "p_interaction"

Downloads the BioPlex version 2.0 interaction dataset

Description

This dataset contains ~56,000 interactions detected in HEK293T cells using 5,891 baits. More details at https://bioplex.hms.harvard.edu/interactions.php

Usage

bioplex2()

Value

Data frame (tibble) with interactions.

See Also

Examples

bioplex_interactions <- bioplex2()
nrow(bioplex_interactions)
# [1] 56553
colnames(bioplex_interactions)
# [1] "GeneA"         "GeneB"        "UniprotA"   "UniprotB"
# [5] "SymbolA"       "SymbolB"      "p_wrong"    "p_no_interaction"
# [9] "p_interaction"

Downloads the BioPlex version 3.0 interaction dataset

Description

This dataset contains ~120,000 interactions detected in HEK293T cells using 10,128 baits. More details at https://bioplex.hms.harvard.edu/interactions.php.

Usage

bioplex3()

Value

Data frame (tibble) with interactions.

See Also

Examples

bioplex_interactions <- bioplex3()
nrow(bioplex_interactions)
# [1] 118162
colnames(bioplex_interactions)
# [1] "GeneA"         "GeneB"        "UniprotA"   "UniprotB"
# [5] "SymbolA"       "SymbolB"      "p_wrong"    "p_no_interaction"
# [9] "p_interaction"

BMA motifs from a sequence of edges

Description

These motifs can be added to a BMA canvas.

Usage

bma_motif_es(edge_seq, G, granularity = 2)

Arguments

edge_seq

An igraph edge sequence.

G

An igraph graph object.

granularity

Numeric: granularity value.

Value

Character: BMA motifs as a single string.

Examples

interactions <- omnipath(resources = "ARN")
graph <- interaction_graph(interactions)
motifs <- bma_motif_es(igraph::E(graph)[1], graph)

Prints a BMA motif to the screen from a sequence of nodes, which can be copy/pasted into the BMA canvas

Description

Intended to parallel print_path_vs

Usage

bma_motif_vs(node_seq, G)

Arguments

node_seq

An igraph node sequence.

G

An igraph graph object.

Value

Character: BMA motifs as a single string.

Examples

interactions <- omnipath(resources = "ARN")
graph <- interaction_graph(interactions)
bma_string <- bma_motif_vs(
    igraph::all_shortest_paths(
        graph,
        from = 'ULK1',
        to = 'ATG13'
    )$res,
    graph
)

Genome scale metabolic model by Wang et al. 2021

Description

Process the GEMs from Wang et al., 2021 (https://github.com/SysBioChalmers) into convenient tables.

Usage

chalmers_gem(organism = "Human", orphans = TRUE)

Arguments

organism

Character or integer: an organism (taxon) identifier. Supported taxons are 9606 (Homo sapiens), 10090 (Mus musculus), 10116 (Rattus norvegicus), 7955 (Danio rerio), 7227 (Drosophila melanogaster) and 6239 (Caenorhabditis elegans).

orphans

Logical: include orphan reactions (reactions without known enzyme).

Value

List containing the following elements:

  • reactions: tibble of reaction data;

  • metabolites: tibble of metabolite data;

  • reaction_ids: translation table of reaction identifiers;

  • metabolite_ids: translation table of metabolite identifiers;

  • S: Stoichiometric matrix (sparse).

References

Wang H, Robinson JL, Kocabas P, Gustafsson J, Anton M, Cholley PE, Huang S, Gobom J, Svensson T, Uhlen M, Zetterberg H, Nielsen J. Genome-scale metabolic network reconstruction of model animals as a platform for translational research. Proc Natl Acad Sci U S A. 2021 Jul 27;118(30):e2102344118. doi: doi:10.1073/pnas.2102344118.

See Also

Examples

gem <- chalmers_gem()

Metabolite ID translation tables from Chalmers Sysbio

Description

Metabolite ID translation tables from Chalmers Sysbio

Usage

chalmers_gem_id_mapping_table(to, from = "metabolicatlas", organism = "Human")

Arguments

to

Character: type of ID to translate to, either label used internally in this package, or a column name from "metabolites.tsv" distributed by Chalmers Sysbio. NSE is supported.

from

Character: type of ID to translate from, same format as "to".

organism

Character or integer: name or identifier of the organism. Supported taxons are 9606 (Homo sapiens), 10090 (Mus musculus), 10116 (Rattus norvegicu), 7955 (Danio rerio), 7227 (Drosophila melanogaster) and 6239 (Caenorhabditis elegans).

Value

Tibble with two columns, "From" and "To", with the corresponding ID types.

Examples

chalmers_gem_id_mapping_table('metabolicatlas', 'hmdb')

Metabolite identifier type label used in Chalmers Sysbio GEM

Description

Metabolite identifier type label used in Chalmers Sysbio GEM

Usage

chalmers_gem_id_type(label)

Arguments

label

Character: an ID type label, as shown in the table at translate_ids

Value

Character: the Chalmers GEM specific ID type label, or the input unchanged if it could not be translated (still might be a valid identifier name). These labels should be column names from the "metabolites.tsv" distributed with the GEMs.

See Also

Examples

chalmers_gem_id_type("metabolicatlas")
# [1] "metsNoComp"

Metabolites from the Chalmers SysBio GEM (Wang et al., 2021)

Description

Metabolites from the Chalmers SysBio GEM (Wang et al., 2021)

Usage

chalmers_gem_metabolites(organism = "Human")

Arguments

organism

Character or integer: an organism (taxon) identifier. Supported taxons are 9606 (Homo sapiens), 10090 (Mus musculus), 10116 (Rattus norvegicu), 7955 (Danio rerio), 7227 (Drosophila melanogaster) and 6239 (Caenorhabditis elegans).

Value

Data frame of metabolite identifiers.

References

Wang H, Robinson JL, Kocabas P, Gustafsson J, Anton M, Cholley PE, Huang S, Gobom J, Svensson T, Uhlen M, Zetterberg H, Nielsen J. Genome-scale metabolic network reconstruction of model animals as a platform for translational research. Proc Natl Acad Sci U S A. 2021 Jul 27;118(30):e2102344118. doi: doi:10.1073/pnas.2102344118.

See Also

Examples

chalmers_gem_metabolites()

Chalmers SysBio GEM in the form of gene-metabolite interactions

Description

Processing GEMs from Wang et al., 2021 (https://github.com/SysBioChalmers) to generate PKN for COSMOS

Usage

chalmers_gem_network(
  organism_or_gem = "Human",
  metab_max_degree = 400L,
  protein_ids = c("uniprot", "genesymbol"),
  metabolite_ids = c("hmdb", "kegg")
)

Arguments

organism_or_gem

Character or integer or list or data frame: either an organism (taxon) identifier or a list containing the “reactions“ data frame as it is provided by chalmers_gem, or the reactions data frame itself. Supported taxons are 9606 (Homo sapiens), 10090 (Mus musculus), 10116 (Rattus norvegicus), 7955 (Danio rerio), 7227 (Drosophila melanogaster) and 6239 (Caenorhabditis elegans).

metab_max_degree

Degree cutoff used to prune metabolites with high degree assuming they are cofactors (400 by default).

protein_ids

Character: translate the protein identifiers to these ID types. Each ID type results two extra columns in the output, for the "a" and "b" sides of the interaction, respectively. The default ID type for proteins is Esembl Gene ID, and by default UniProt IDs and Gene Symbols are included.

metabolite_ids

Character: translate the protein identifiers to these ID types. Each ID type results two extra columns in the output, for the "a" and "b" sides of the interaction, respectively. The default ID type for metabolites is Metabolic Atlas ID, and HMDB IDs and KEGG IDs are included.

Value

Data frame (tibble) of gene-metabolite interactions.

References

Wang H, Robinson JL, Kocabas P, Gustafsson J, Anton M, Cholley PE, Huang S, Gobom J, Svensson T, Uhlen M, Zetterberg H, Nielsen J. Genome-scale metabolic network reconstruction of model animals as a platform for translational research. Proc Natl Acad Sci U S A. 2021 Jul 27;118(30):e2102344118. doi: doi:10.1073/pnas.2102344118.

See Also

Examples

gem <- chalmers_gem_network()

GEM matlab file from Chalmers Sysbio (Wang et al., 2021)

Description

Downloads and imports the matlab file containing the genome scale metabolic models created by Chalmers SysBio.

Usage

chalmers_gem_raw(organism = "Human")

Arguments

organism

Character or integer: name or identifier of the organism. Supported taxons are 9606 (Homo sapiens), 10090 (Mus musculus), 10116 (Rattus norvegicu), 7955 (Danio rerio), 7227 (Drosophila melanogaster) and 6239 (Caenorhabditis elegans).

Details

The Matlab object is parsed into a nested list containing a number of vectors and two sparse matrices. The top level contains a single element under the name "ihuman" for human; under this key there is an array of 31 elements. These elements are labeled by the row names of the array.

Value

Matlab object containing the GEM.

References

Wang H, Robinson JL, Kocabas P, Gustafsson J, Anton M, Cholley PE, Huang S, Gobom J, Svensson T, Uhlen M, Zetterberg H, Nielsen J. Genome-scale metabolic network reconstruction of model animals as a platform for translational research. Proc Natl Acad Sci U S A. 2021 Jul 27;118(30):e2102344118. doi: doi:10.1073/pnas.2102344118.

See Also

Examples

chalmers_gem_raw()

Reactions from the Chalmers SysBio GEM (Wang et al., 2021)

Description

Reactions from the Chalmers SysBio GEM (Wang et al., 2021)

Usage

chalmers_gem_reactions(organism = "Human")

Arguments

organism

Character or integer: an organism (taxon) identifier. Supported taxons are 9606 (Homo sapiens), 10090 (Mus musculus), 10116 (Rattus norvegicu), 7955 (Danio rerio), 7227 (Drosophila melanogaster) and 6239 (Caenorhabditis elegans).

Value

Data frame of reaction identifiers.

References

Wang H, Robinson JL, Kocabas P, Gustafsson J, Anton M, Cholley PE, Huang S, Gobom J, Svensson T, Uhlen M, Zetterberg H, Nielsen J. Genome-scale metabolic network reconstruction of model animals as a platform for translational research. Proc Natl Acad Sci U S A. 2021 Jul 27;118(30):e2102344118. doi: doi:10.1073/pnas.2102344118.

See Also

Examples

chalmers_gem_reactions()

Common (English) names of organisms

Description

Common (English) names of organisms

Usage

common_name(name)

Arguments

name

Vector with any kind of organism name or identifier, can be also mixed type.

Value

Character vector with common (English) taxon names, NA if a name in the input could not be found.

See Also

Examples

common_name(c(10090, "cjacchus", "Vicugna pacos"))
# [1] "Mouse" "White-tufted-ear marmoset" "Alpaca"

Get all the molecular complexes for a given gene(s)

Description

This function returns all the molecular complexes where an input set of genes participate. User can choose to retrieve every complex where any of the input genes participate or just retrieve these complexes where all the genes in input set participate together.

Usage

complex_genes(complexes = complexes(), genes, all_genes = FALSE)

Arguments

complexes

Data frame of protein complexes (obtained using complexes).

genes

Character: search complexes where these genes present.

all_genes

Logical: select only complexes where all of the genes present together. By default complexes where any of the genes can be found are returned.

Value

Data frame of complexes

See Also

complexes

Examples

complexes <- complexes(resources = c("CORUM", "hu.MAP"))
query_genes <- c("LMNA", "BANF1")
complexes_with_query_genes <- complex_genes(complexes, query_genes)

Retrieve a list of complex resources available in Omnipath

Description

Get the names of the resources from https://omnipathdb.org/complexes

Usage

complex_resources(dataset = NULL)

Arguments

dataset

ignored for this query type

Value

character vector with the names of the databases

See Also

Examples

complex_resources()

Protein complexes from OmniPath

Description

A comprehensive dataset of protein complexes from the https://omnipathdb.org/complexes endpoint of the OmniPath web service.

Usage

complexes(...)

Arguments

...

Arguments passed on to omnipath_query

organism

Character or integer: name or NCBI Taxonomy ID of the organism. OmniPath is built of human data, and the web service provides orthology translated interactions and enzyme-substrate relationships for mouse and rat. For other organisms and query types, orthology translation will be called automatically on the downloaded human data before returning the result.

resources

Character vector: name of one or more resources. Restrict the data to these resources. For a complete list of available resources, call the '<query_type>_resources' functions for the query type of interst.

genesymbols

Character or logical: TRUE or FALS or "yes" or "no". Include the 'genesymbols' column in the results. OmniPath uses UniProt IDs as the primary identifiers, gene symbols are optional.

fields

Character vector: additional fields to include in the result. For a list of available fields, call 'query_info("interactions")'.

default_fields

Logical: if TRUE, the default fields will be included.

silent

Logical: if TRUE, no messages will be printed. By default a summary message is printed upon successful download.

logicals

Character vector: fields to be cast to logical.

format

Character: if "json", JSON will be retrieved and processed into a nested list; any other value will return data frame.

download_args

List: parameters to pass to the download function, which is 'readr::read_tsv' by default, and 'jsonlite::safe_load'.

add_counts

Logical: if TRUE, the number of references and number of resources for each record will be added to the result.

license

Character: license restrictions. By default, data from resources allowing "academic" use is returned by OmniPath. If you use the data for work in a company, you can provide "commercial" or "for-profit", which will restrict the data to those records which are supported by resources that allow for-profit use.

password

Character: password for the OmniPath web service. You can provide a special password here which enables the use of 'license = "ignore"' option, completely bypassing the license filter.

exclude

Character vector: resource or dataset names to be excluded. The data will be filtered after download to remove records of the excluded datasets and resources.

strict_evidences

Logical: reconstruct the "sources" and "references" columns of interaction data frames based on the "evidences" column, strictly filtering them to the queried datasets and resources. Without this, the "sources" and "references" fields for each record might contain information for datasets and resources other than the queried ones, because the downloaded records are a result of a simple filtering of an already integrated data frame.

genesymbol_resource

Character: "uniprot" (default) or "ensembl". The OmniPath web service uses the primary gene symbols as provided by UniProt. By passing "ensembl" here, the UniProt gene symbols will be replaced by the ones used in Ensembl. This translation results in a loss of a few records, and multiplication of another few records due to ambiguous translation.

cache

Logical: use caching, load data from and save to the. The cache directory by default belongs to the user, located in the user's default cache directory, and named "OmnipathR". Find out about it by getOption("omnipathr.cachedir"). Can be changed by omnipath_set_cachedir.

Value

A data frame of protein complexes.

See Also

Examples

cplx <- complexes(resources = c("CORUM", "hu.MAP"))

Retrieves the ConsensusPathDB network

Description

Compiles a table of binary interactions from ConsensusPathDB (http://cpdb.molgen.mpg.de/) and translates the UniProtKB ACs to Gene Symbols.

Usage

consensuspathdb_download(complex_max_size = 4, min_score = 0.9)

Arguments

complex_max_size

Numeric: do not expand complexes with a higher number of elements than this. ConsensusPathDB does not contain conventional interactions but lists of participants, which might be members of complexes. Some records include dozens of participants and expanding them to binary interactions result thousands, sometimes hundreds of thousands of interactions from one single record. At the end, this process consumes >10GB of memory and results rather unusable data, hence it is recommended to limit the complex sizes at some low number.

min_score

Numeric: each record in ConsensusPathDB comes with a confidence score, expressing the amount of evidences. The default value, a minimum score of 0.9 retains approx. the top 30 percent of the interactions.

Value

Data frame (tibble) with interactions.

Examples

## Not run: 
cpdb_data <- consensuspathdb_download(
    complex_max_size = 1,
    min_score = .99
)
nrow(cpdb_data)
# [1] 252302
colnames(cpdb_data)
# [1] "databases"  "references" "uniprot_a"    "confidence"   "record_id"
# [6] "uniprot_b"  "in_complex" "genesymbol_a" "genesymbol_b"
cpdb_data
# # A tibble: 252,302 x 9
#    databases references uniprot_a confidence record_id uniprot_b in_com
#    <chr>     <chr>      <chr>          <dbl>     <int> <chr>     <lgl>
#  1 Reactome  NA         SUMF2_HU.      1             1 SUMF1_HU. TRUE
#  2 Reactome  NA         SUMF1_HU.      1             1 SUMF2_HU. TRUE
#  3 DIP,Reac. 22210847,. STIM1_HU.      0.998         2 TRPC1_HU. TRUE
#  4 DIP,Reac. 22210847,. TRPC1_HU.      0.998         2 STIM1_HU. TRUE
# # . with 252,292 more rows, and 2 more variables: genesymbol_a <chr>,
# #   genesymbol_b <chr

## End(Not run)

Downloads interaction data from ConsensusPathDB

Description

Downloads interaction data from ConsensusPathDB

Usage

consensuspathdb_raw_table()

Value

Data frame (tibble) with interactions.

Examples

cpdb_raw <- consensuspathdb_raw_table()

Prior knowledge network (PKN) for COSMOS

Description

The prior knowledge network (PKN) used by COSMOS is a network of heterogenous causal interactions: it contains protein-protein, reactant-enzyme and enzyme-product interactions. It is a combination of multiple resources:

  • Genome-scale metabolic model (GEM) from Chalmers Sysbio (Wang et al., 2021.)

  • Network of chemical-protein interactions from STITCH (https://stitch.embl.de/)

  • Protein-protein interactions from Omnipath (Türei et al., 2021)

This function downloads, processes and combines the resources above. With all downloads and processing the build might take 30-40 minutes. Data is cached at various levels of processing, shortening processing times. With all data downloaded and HMDB ID translation data preprocessed, the build takes 3-4 minutes; the complete PKN is also saved in the cache, if this is available, loading it takes only a few seconds.

Usage

cosmos_pkn(
  organism = "human",
  protein_ids = c("uniprot", "genesymbol"),
  metabolite_ids = c("hmdb", "kegg"),
  chalmers_gem_metab_max_degree = 400L,
  stitch_score = 700L,
  ...
)

Arguments

organism

Character or integer: name or NCBI Taxonomy ID of an organism. Supported organisms vary by resource: the Chalmers GEM is available only for human, mouse, rat, fish, fly and worm. OmniPath can be translated by orthology, but for non-vertebrate or less researched taxa very few orthologues are available. STITCH is available for a large number of organisms, please refer to their web page: https://stitch.embl.de/.

protein_ids

Character: translate the protein identifiers to these ID types. Each ID type results two extra columns in the output, for the "source" and "target" sides of the interaction, respectively. The default ID type for proteins depends on the resource, hence the "source" and "target" columns are heterogenous. By default UniProt IDs and Gene Symbols are included. The Gene Symbols used in the COSMOS PKN are provided by Ensembl, and do not completely agree with the ones provided by UniProt and used in OmniPath data by default.

metabolite_ids

Character: translate the metabolite identifiers to these ID types. Each ID type results two extra columns in the output, for the "source" and "target" sides of the interaction, respectively. The default ID type for metabolites depends on the resource, hence the "source" and "target" columns are heterogenous. By default HMDB IDs and KEGG IDs are included.

chalmers_gem_metab_max_degree

Numeric: remove metabolites from the Chalmers GEM network with defgrees larger than this. Useful to remove cofactors and over-promiscuous metabolites.

stitch_score

Include interactions from STITCH with combined confidence score larger than this.

...

Further parameters to omnipath_interactions.

Value

A data frame of binary causal interations with effect signs, resource specific attributes and translated to the desired identifiers. The “record_id“ column identifies the original records within each resource. If one “record_id“ yields multiple records in the final data frame, it is the result of one-to-many ID translation or other processing steps. Before use, it is recommended to select one pair of ID type columns (by combining the preferred ones) and perform “distinct“ by the identifier columns and sign.

References

Wang H, Robinson JL, Kocabas P, Gustafsson J, Anton M, Cholley PE, et al. Genome-scale metabolic network reconstruction of model animals as a platform for translational research. Proceedings of the National Academy of Sciences. 2021 Jul 27;118(30):e2102344118.

Türei D, Valdeolivas A, Gul L, Palacio‐Escat N, Klein M, Ivanova O, et al. Integrated intra‐ and intercellular signaling knowledge for multicellular omics analysis. Molecular Systems Biology. 2021 Mar;17(3):e9923.

See Also

Examples

## Not run: 
    human_cosmos <- cosmos_pkn(organism = "human")

## End(Not run)

Curated ligand-receptor interactions

Description

The OmniPath intercell database annotates individual proteins and complexes, and we combine these annotations with network interactions on the client side, using import_intercell_network. The architecture of this database is complex, aiming to cover a broad range of knowledge on various levels of details and confidence. We can use the intercell_consensus_filter and filter_intercell_network functions for automated, data driven quality filtering, in order to enrich the cell-cell communication network in higher confidence interactions. However, for many users, a simple combination of the most established, expert curated ligand-receptor resources, provided by this function, fits better their purpose.

Usage

curated_ligand_receptor_interactions(
  curated_resources = c("Guide2Pharma", "HPMR", "ICELLNET", "Kirouac2010", "CellTalkDB",
    "CellChatDB", "connectomeDB2020"),
  cellphonedb = TRUE,
  cellinker = TRUE,
  talklr = TRUE,
  signalink = TRUE,
  ...
)

Arguments

curated_resources

Character vector of the resource names which are considered to be expert curated. You can include any post-translational network resource here, but if you include non ligand-receptor or non curated resources, the result will not fulfill the original intention of this function.

cellphonedb

Logical: include the curated interactions from CellPhoneDB (not the whole CellPhoneDB but a subset of it).

cellinker

Logical: include the curated interactions from Cellinker (not the whole Cellinker but a subset of it).

talklr

Logical: include the curated interactions from talklr (not the whole talklr but a subset of it).

signalink

Logical: include the ligand-receptor interactions from SignaLink. These are all expert curated.

...

Passed to import_post_translational_interactions: further parameters for the interaction data. Should not contain 'resources' argument as that would interfere with the downstream calls.

Details

Some resources are a mixture of curated and bulk imported interactions, and sometimes it's not trivial to separate these, we take care of these here. This function does not use the intercell database of OmniPath, but retrieves and filters a handful of network resources. The returned data frame has the layout of interactions (network) data frames, and the source and target partners implicitly correspond to ligand and receptor. The data frame shows all resources and references for all interactions, but each interaction is supported by at least one ligand-receptor resource which is supposed to based on expert curation in a ligand-receptor context.

Value

A data frame similar to interactions (network) data frames, the source and target partners being ligand and receptor, respectively.

See Also

Examples

lr <- curated_ligand_receptor_interactions()
lr

Statistics about literature curated ligand-receptor interactions

Description

Statistics about literature curated ligand-receptor interactions

Usage

curated_ligrec_stats(...)

Arguments

...

Passed to curated_ligand_receptor_interactions, determines the set of all curated L-R interactions which will be compared against each of the individual resources.

Details

The data frame contains the total number of interactions, the number of interactions which overlap with the set of curated interactions (curated_overlap), the number of interactions with literature references from the given resource (literature) and the number of interactions which are curated by the given resource (curated_self). This latter we defined according to our best knowledge, in many cases it's not possible to distinguish curated interactions). All these numbers are also presented as a percent of the total. Importantly, here we consider interactions curated only if they've been curated in a cell-cell communication context.

Value

A data frame with estimated counts of curated ligand-receptor interactions for each L-R resource.

See Also

curated_ligand_receptor_interactions

Examples

clr <- curated_ligrec_stats()
clr

Summary of the annotations and intercell database contents

Description

The 'annotations_summary' and 'intercell_summary' query types return detailed information on the contents of these databases. It includes all the available resources, fields and values in the database.

Usage

database_summary(query_type, return_df = FALSE)

Arguments

query_type

Character: either "annotations" or "intercell".

return_df

Logical: return a data frame instead of list.

Value

Summary of the database contents: the available resources, fields, and their possible values. As a nested list if format is "json", otherwise a data frame.

Examples

annotations_summary <- database_summary('annotations')

Create a column with dataset names listed

Description

From logical columns for each dataset, here we create a column that is a list of character vectors, containing dataset labels.

Usage

datasets_one_column(data, remove_logicals = TRUE)

Arguments

data

Interactions data frame with dataset columns (i.e. queried with the option 'fields = "datasets"').

remove_logicals

Logical: remove the per dataset logical columns.

Value

The input data frame with the new column "datasets" added.


All descendants in the ontology tree

Description

Starting from the selected nodes, recursively walks the ontology tree until it reaches the leaf nodes. Collects all visited nodes, which are the descendants (children) of the starting nodes.

Usage

descendants(
  terms,
  db_key = "go_basic",
  ids = TRUE,
  relations = c("is_a", "part_of", "occurs_in", "regulates", "positively_regulates",
    "negatively_regulates")
)

Arguments

terms

Character vector of ontology term IDs or names. A mixture of IDs and names can be provided.

db_key

Character: key to identify the ontology database. For the available keys see omnipath_show_db.

ids

Logical: whether to return IDs or term names.

relations

Character vector of ontology relation types. Only these relations will be used.

Details

Note: this function relies on the database manager, the first call might take long because of the database load process. Subsequent calls within a short period should be faster. See get_ontology_db.

Value

Character vector of ontology IDs. If the input terms are all leaves NULL is returned. The starting nodes won't be included in the result unless some of them are descendants of other starting nodes.

Examples

descendants('GO:0005035', ids = FALSE)
# [1] "tumor necrosis factor-activated receptor activity"
# [2] "TRAIL receptor activity"
# [3] "TNFSF11 receptor activity"

Ensembl dataset name from organism

Description

Ensembl dataset name from organism

Usage

ensembl_dataset(organism)

Arguments

organism

Character or integer: an organism (taxon) name or identifier. If an Ensembl dataset name is provided

Value

Character: name of an ensembl dataset.

Examples

ensembl_dataset(10090)
# [1] "mmusculus_gene_ensembl"

Identifier translation table from Ensembl

Description

Identifier translation table from Ensembl

Usage

ensembl_id_mapping_table(to, from = "uniprot", organism = 9606)

Arguments

to

Character or symbol: target ID type. See Details for possible values.

from

Character or symbol: source ID type. See Details for possible values.

organism

Character or integer: NCBI Taxonomy ID or name of the organism (by default 9606 for human).

Details

The arguments to and from can be provided either as character or as symbol (NSE). Their possible values are either Ensembl attribute names or synonyms listed at translate_ids.

Value

A data frame (tibble) with columns 'From' and 'To'.

See Also

Examples

ensp_up <- ensembl_id_mapping_table("ensp")
ensp_up
# # A tibble: 119,129 × 2
#    From   To
#    <chr>  <chr>
#  1 P03886 ENSP00000354687
#  2 P03891 ENSP00000355046
#  3 P00395 ENSP00000354499
#  4 P00403 ENSP00000354876
#  5 P03928 ENSP00000355265
# # . with 119,124 more rows

Ensembl identifier type label

Description

Ensembl identifier type label

Usage

ensembl_id_type(label)

Arguments

label

Character: an ID type label, as shown in the table at translate_ids

Value

Character: the Ensembl specific ID type label, or the input unchanged if it could not be translated (still might be a valid identifier name). These labels should be valid Ensembl attribute names, directly usable in Ensembl queries.

See Also

Examples

ensembl_id_type("uniprot")
# [1] "uniprotswissprot"

Ensembl identifiers of organisms

Description

Ensembl identifiers of organisms

Usage

ensembl_name(name)

Arguments

name

Vector with any kind of organism name or identifier, can be also mixed type.

Value

Character vector with Ensembl taxon names, NA if a name in the input could not be found.

See Also

Examples

ensembl_name(c(9606, "cat", "dog"))
# [1] "hsapiens" "fcatus" "clfamiliaris"
ensembl_name(c("human", "kitten", "cow"))
# [1] "hsapiens" NA  "btaurus"

Organism names and identifiers from Ensembl

Description

A table with various taxon names and identifiers: English common names, latin (scientific) names, Ensembl organism IDs and NCBI taxonomy IDs.

Usage

ensembl_organisms()

Value

A data frame with the above mentioned columns.

Examples

ens_org <- ensembl_organisms()
ens_org

Table of Ensembl organisms

Description

A table with various taxon IDs and metadata about related Ensembl database contents, as shown at https://www.ensembl.org/info/about/species.html. The "Taxon ID" column contains the NCBI Taxonomy identifiers.

Usage

ensembl_organisms_raw()

Value

The table described above as a data frame.

Examples

ens_org <- ensembl_organisms_raw()
ens_org

Orthologous gene pairs from Ensembl

Description

Orthologous gene pairs from Ensembl

Usage

ensembl_orthology(
  organism_a = 9606,
  organism_b = 10090,
  attrs_a = NULL,
  attrs_b = NULL,
  colrename = TRUE
)

Arguments

organism_a

Character or integer: organism name or identifier for the left side organism. We query the Ensembl dataset of this organism and add the orthologues of the other organism to it. Ideally this is the organism you translate from.

organism_b

Character or integer: organism name or identifier for the right side organism. We add orthology information of this organism to the gene records of the left side organism.

attrs_a

Further attributes about organism_a genes. Will be simply added to the attributes list.

attrs_b

Further attributes about organism_b genes (orthologues). The available attributes are: "associated_gene_name", "chromosome", "chrom_start", "chrom_end", "wga_coverage", "goc_score", "perc_id_r1", "perc_id", "subtype". Attributes included by default: "ensembl_gene", "ensembl_peptide", "canonical_transcript_protein", "orthology_confidence" and "orthology_type".

colrename

Logical: replace prefixes from organism_b attribute column names, so the returned table always have the same column names, no matter the organism. E.g. for mouse these columns all have the prefix "mmusculus_homolog_", which this option changes to "b_".

Details

Only the records with orthology information are returned. The order of columns is the following: defaults of organism_a, extra attributes of organism_b, defaults of organism_b, extra attributes of organism_b.

Value

A data frame of orthologous gene pairs with gene, transcript and peptide identifiers and confidence values.

Examples

## Not run: 
sffish <- ensembl_orthology(
    organism_b = 'Siamese fighting fish',
    attrs_a = 'external_gene_name',
    attrs_b = 'associated_gene_name'
)
sffish
# # A tibble: 175,608 × 10
#    ensembl_gene_id ensembl_transcript_id ensembl_peptide. external_gene_n.
#    <chr>           <chr>                 <chr>            <chr>
#  1 ENSG00000277196 ENST00000621424       ENSP00000481127  NA
#  2 ENSG00000277196 ENST00000615165       ENSP00000482462  NA
#  3 ENSG00000278817 ENST00000613204       ENSP00000482514  NA
#  4 ENSG00000274847 ENST00000400754       ENSP00000478910  MAFIP
#  5 ENSG00000273748 ENST00000612919       ENSP00000479921  NA
# # . with 175,603 more rows, and 6 more variables:
# #   b_ensembl_peptide <chr>, b_ensembl_gene <chr>,
# #   b_orthology_type <chr>, b_orthology_confidence <dbl>,
# #   b_canonical_transcript_protein <chr>, b_associated_gene_name <chr>
#

## End(Not run)

Converts a network to igraph object unless it is already one

Description

Converts a network to igraph object unless it is already one

Usage

ensure_igraph(network)

Arguments

network

Either an OmniPath interaction data frame, or an igraph graph object.

Value

An igraph graph object.


Enzyme-substrate graph

Description

Transforms the a data frame with enzyme-substrate relationships (obtained by enzyme_substrate) to an igraph graph object.

Usage

enzsub_graph(enzsub)

Arguments

enzsub

Data frame created by enzyme_substrate

Value

An igraph directed graph object.

See Also

Examples

enzsub <- enzyme_substrate(resources = c('PhosphoSite', 'SIGNOR'))
enzsub_g <- enzsub_graph(enzsub = enzsub)

Retrieves a list of enzyme-substrate resources available in OmniPath

Description

Get the names of the enzyme-substrate relationship resources available in https://omnipathdb.org/enzsub

Usage

enzsub_resources(dataset = NULL)

Arguments

dataset

ignored for this query type

Value

character vector with the names of the enzyme-substrate resources

See Also

Examples

enzsub_resources()

Enzyme-substrate (PTM) relationships from OmniPath

Description

Imports the enzyme-substrate (more exactly, enzyme-PTM) relationship database from https://omnipathdb.org/enzsub. These are mostly kinase-substrate relationships, with some acetylation and other types of PTMs.

Usage

enzyme_substrate(...)

Arguments

...

Arguments passed on to omnipath_query

organism

Character or integer: name or NCBI Taxonomy ID of the organism. OmniPath is built of human data, and the web service provides orthology translated interactions and enzyme-substrate relationships for mouse and rat. For other organisms and query types, orthology translation will be called automatically on the downloaded human data before returning the result.

resources

Character vector: name of one or more resources. Restrict the data to these resources. For a complete list of available resources, call the '<query_type>_resources' functions for the query type of interst.

genesymbols

Character or logical: TRUE or FALS or "yes" or "no". Include the 'genesymbols' column in the results. OmniPath uses UniProt IDs as the primary identifiers, gene symbols are optional.

fields

Character vector: additional fields to include in the result. For a list of available fields, call 'query_info("interactions")'.

default_fields

Logical: if TRUE, the default fields will be included.

silent

Logical: if TRUE, no messages will be printed. By default a summary message is printed upon successful download.

logicals

Character vector: fields to be cast to logical.

format

Character: if "json", JSON will be retrieved and processed into a nested list; any other value will return data frame.

download_args

List: parameters to pass to the download function, which is 'readr::read_tsv' by default, and 'jsonlite::safe_load'.

add_counts

Logical: if TRUE, the number of references and number of resources for each record will be added to the result.

license

Character: license restrictions. By default, data from resources allowing "academic" use is returned by OmniPath. If you use the data for work in a company, you can provide "commercial" or "for-profit", which will restrict the data to those records which are supported by resources that allow for-profit use.

password

Character: password for the OmniPath web service. You can provide a special password here which enables the use of 'license = "ignore"' option, completely bypassing the license filter.

exclude

Character vector: resource or dataset names to be excluded. The data will be filtered after download to remove records of the excluded datasets and resources.

strict_evidences

Logical: reconstruct the "sources" and "references" columns of interaction data frames based on the "evidences" column, strictly filtering them to the queried datasets and resources. Without this, the "sources" and "references" fields for each record might contain information for datasets and resources other than the queried ones, because the downloaded records are a result of a simple filtering of an already integrated data frame.

genesymbol_resource

Character: "uniprot" (default) or "ensembl". The OmniPath web service uses the primary gene symbols as provided by UniProt. By passing "ensembl" here, the UniProt gene symbols will be replaced by the ones used in Ensembl. This translation results in a loss of a few records, and multiplication of another few records due to ambiguous translation.

cache

Logical: use caching, load data from and save to the. The cache directory by default belongs to the user, located in the user's default cache directory, and named "OmnipathR". Find out about it by getOption("omnipathr.cachedir"). Can be changed by omnipath_set_cachedir.

Value

A data frame of enzymes and their PTM substrates.

See Also

Examples

enzsub <- enzyme_substrate(
    resources = c("PhosphoSite", "SIGNOR"),
    organism = 9606
)

Interactions from the EVEX database

Description

Downloads interactions from EVEX, a versatile text mining resource (http://evexdb.org). Translates the Entrez Gene IDs to Gene Symbols and combines the interactions and references into a single data frame.

Usage

evex_download(
    min_confidence = NULL,
    remove_negatives = TRUE,
    top_confidence = NULL
)

Arguments

min_confidence

Numeric: a threshold for confidence scores. EVEX confidence scores span roughly from -3 to 3. By providing a numeric value in this range the lower confidence interactions can be removed. If NULL no filtering performed.

remove_negatives

Logical: remove the records with the "negation" attribute set.

top_confidence

Confidence cutoff as quantile (a number between 0 and 1). If NULL no filtering performed.

Value

Data frame (tibble) with interactions.

Examples

evex_interactions <- evex_download()
evex_interactions
# # A tibble: 368,297 x 13
#   general_event_id source_entrezge. target_entrezge. confidence negation
#               <dbl> <chr>            <chr>                 <dbl>    <dbl>
# 1               98 8651             6774                 -1.45         0
# 2              100 8431             6774                 -1.45         0
# 3              205 6261             6263                  0.370        0
# 4              435 1044             1045                 -1.09         0
# . with 368,287 more rows, and 8 more variables: speculation <dbl>,
#   coarse_type <chr>, coarse_polarity <chr>, refined_type <chr>,
#   refined_polarity <chr>, source_genesymbol <chr>,
#   target_genesymbol <chr>, references <chr>

Show evidences for an interaction

Description

Show evidences for an interaction

Usage

evidences(
  partner_a,
  partner_b,
  interactions = NULL,
  directed = FALSE,
  open = TRUE,
  browser = NULL,
  max_pages = 25L
)

Arguments

partner_a

Identifier or name of one interacting partner. The order of the partners matter only if 'directed' is 'TRUE'. For both partners, vectors of more than one identifiers can be passed.

partner_b

Identifier or name of the other interacting partner.

interactions

An interaction data frame. If not provided, all interactions will be loaded within this function, but that takes noticeable time. If a 'list' is provided, it will be used as parameters for omnipath_interactions. This way you can define the organism, datasets or the interaction type.

directed

Logical: does the direction matter? If 'TRUE', only a → b interactions will be shown.

open

Logical: open online articles in a web browser.

browser

Character: override the web browser executable used to open online articles.

max_pages

Numeric: largest number of pages to open. This is to prevent opening hundreds or thousands of pages at once.

Details

If the number of references is larger than 'max_pages', the most recent ones will be opened. URLs are passed to the browser in order of decreasing publication date, though browsers do not seem to respect the order at all. In addition Firefox, if it's not open already, tends to randomly open empty tab for the first or last URL, have no idea what to do about it.

Value

Nothing.

Examples

## Not run: 
evidences('CALM1', 'TRPC1', list(datasets = 'omnipath'))

## End(Not run)

Possible values of an extra attribute

Description

Extracts all unique values of an extra attribute occuring in this data frame.

Usage

extra_attr_values(data, key)

Arguments

data

An interaction data frame with extra_attrs column.

key

The name of an extra attribute.

Details

Note, at the end we unlist the result, which means it works well for attributes which are atomic vectors but gives not so useful result if the attribute values are more complex objects. As the time of writing this, no such complex extra attribute exist in OmniPath.

Value

A vector, most likely character, with the unique values of the extra attribute occuring in the data frame.

See Also

Examples

op <- omnipath(fields = "extra_attrs")
extra_attr_values(op, SIGNOR_mechanism)

Extra attribute names in an interaction data frame

Description

Interaction data frames might have an 'extra_attrs' column if this field has been requested in the query by passing the ‘fields = ’extra_attrs' argument. This column contains resource specific attributes for the interactions. The names of the attributes consist of the name of the resource and the name of the attribute, separated by an underscore. This function returns the names of the extra attributes available in the provided data frame.

Usage

extra_attrs(data)

Arguments

data

An interaction data frame, as provided by any of the omnipath-interactions functions.

Value

Character: the names of the extra attributes in the data frame.

See Also

Examples

i <- omnipath(fields = "extra_attrs")
extra_attrs(i)

New columns from extra attributes

Description

New columns from extra attributes

Usage

extra_attrs_to_cols(data, ..., flatten = FALSE, keep_empty = TRUE)

Arguments

data

An interaction data frame.

...

The names of the extra attributes; NSE is supported. Custom column names can be provided as argument names.

flatten

Logical: unnest the list column even if some records have multiple values for the attributes; these will yield multiple records in the resulted data frame.

keep_empty

Logical: if 'flatten' is 'TRUE', shall we keep the records which do not have the attribute?

Value

Data frame with the new column created; the new column is list type if one interaction might have multiple values of the attribute, or character type if

See Also

Examples

i <- omnipath(fields = "extra_attrs")
extra_attrs_to_cols(i, Cellinker_type, Macrophage_type)
extra_attrs_to_cols(
    i,
    Cellinker_type,
    Macrophage_type,
    flatten = TRUE,
    keep_empty = FALSE
)

Filters OmniPath data by resources

Description

Keeps only those records which are supported by any of the resources of interest.

Usage

filter_by_resource(data, resources = NULL)

Arguments

data

A data frame downloaded from the OmniPath web service (interactions, enzyme-substrate or complexes).

resources

Character vector with resource names to keep.

Value

The data frame filtered.

Examples

interactions <- omnipath()
signor <- filter_by_resource(interactions, resources = "SIGNOR")

Filter evidences by dataset, resource and license

Description

Filter evidences by dataset, resource and license

Usage

filter_evidences(data, ..., datasets = NULL, resources = NULL, exclude = NULL)

Arguments

data

An interaction data frame with some columns containing evidences as nested lists.

...

The evidences columns to filter: tidyselect syntax is supported. By default the columns "evidences", "positive", "negative", "directed" and "undirected" are filtered, if present.

datasets

A character vector of dataset names.

resources

A character vector of resource names.

exclude

Character vector of resource names to be excluded.

Value

The input data frame with the evidences in the selected columns filtered.

See Also


Filter interactions by extra attribute values

Description

Filter interactions by extra attribute values

Usage

filter_extra_attrs(data, ..., na_ok = TRUE)

Arguments

data

An interaction data frame with extra_attrs column.

...

Extra attribute names and values. The contents of the extra attribute name for each record will be checked against the values provided. The check by default is a set intersection: if any element is common between the user provided values and the values of the extra attribute for the record, the record will be matched. Alternatively, any value can be a custom function which accepts the value of the extra attribute and returns a single logical value. Finally, if the extra attribute name starts with a dot, the result of the check will be negated.

na_ok

Logical: keep the records which do not have the extra attribute. Typically these are the records which are not from the resource providing the extra attribute.

Value

The input data frame with records removed according to the filtering criteria.

See Also

Examples

cl <- post_translational(
    resources = "Cellinker",
    fields = "extra_attrs"
)
# Only cell adhesion interactions from Cellinker
filter_extra_attrs(cl, Cellinker_type = "Cell adhesion")

op <- omnipath(fields = "extra_attrs")
# Any mechanism except phosphorylation
filter_extra_attrs(op, .SIGNOR_mechanism = "phosphorylation")

Filter intercell annotations

Description

Filters a data frame retrieved by intercell.

Usage

filter_intercell(
  data,
  categories = NULL,
  resources = NULL,
  parent = NULL,
  scope = NULL,
  aspect = NULL,
  source = NULL,
  transmitter = NULL,
  receiver = NULL,
  secreted = NULL,
  plasma_membrane_peripheral = NULL,
  plasma_membrane_transmembrane = NULL,
  proteins = NULL,
  causality = NULL,
  topology = NULL,
  ...
)

Arguments

data

An intercell annotation data frame as provided by intercell.

categories

Character: allow only these values in the category column.

resources

Character: allow records only from these resources.

parent

Character: filter for records with these parent categories.

scope

Character: filter for records with these annotation scopes. Possible values are generic and specific.

aspect

Character: filter for records with these annotation aspects. Possible values are functional and locational.

source

Character: filter for records with these annotation sources. Possible values are composite and resource_specific.

transmitter

Logical: if TRUE only transmitters, if FALSE only non-transmitters will be selected, if NULL it has no effect.

receiver

Logical: works the same way as transmitters.

secreted

Logical: works the same way as transmitters.

plasma_membrane_peripheral

Logical: works the same way as transmitters.

plasma_membrane_transmembrane

Logical: works the same way as transmitters.

proteins

Character: filter for annotations of these proteins. Gene symbols or UniProt IDs can be used.

causality

Character: filter for records with these causal roles. Possible values are transmitter and receiver. The filter applied simultaneously to the transmitter and receiver arguments, it's just a different notation for the same thing.

topology

Character: filter for records with these localization topologies. Possible values are secreced, plasma_membrane_peripheral and plasma_membrane_transmembrane; the shorter notations sec, pmp and pmtm can be used. Has the same effect as the logical type arguments, just uses a different notation.

...

Ignored.

Value

The intercell annotation data frame filtered according to the specified conditions.

See Also

Examples

ic <- intercell()
ic <- filter_intercell(
    ic,
    transmitter = TRUE,
    secreted = TRUE,
    scope = "specific"
)

Quality filter an intercell network

Description

The intercell database of OmniPath covers a very broad range of possible ways of cell to cell communication, and the pieces of information, such as localization, topology, function and interaction, are combined from many, often independent sources. This unavoidably result some weird and unexpected combinations which are false positives in the context of intercellular communication. intercell_network provides a shortcut (high_confidence) to do basic quality filtering. For custom filtering or experimentation with the parameters we offer this function.

Usage

filter_intercell_network(
  network,
  transmitter_topology = c("secreted", "plasma_membrane_transmembrane",
    "plasma_membrane_peripheral"),
  receiver_topology = "plasma_membrane_transmembrane",
  min_curation_effort = 2,
  min_resources = 1,
  min_references = 0,
  min_provenances = 1,
  consensus_percentile = 50,
  loc_consensus_percentile = 30,
  ligand_receptor = FALSE,
  simplify = FALSE,
  unique_pairs = FALSE,
  omnipath = TRUE,
  ligrecextra = TRUE,
  kinaseextra = FALSE,
  pathwayextra = FALSE,
  ...
)

Arguments

network

An intercell network data frame, as provided by intercell_network, without simplify.

transmitter_topology

Character vector: topologies allowed for the entities in transmitter role. Abbreviations allowed: "sec", "pmtm" and "pmp".

receiver_topology

Same as transmitter_topology for the entities in the receiver role.

min_curation_effort

Numeric: a minimum value of curation effort (resource-reference pairs) for network interactions. Use zero to disable filtering.

min_resources

Numeric: minimum number of resources for interactions. The value 1 means no filtering.

min_references

Numeric: minimum number of references for interactions. Use zero to disable filtering.

min_provenances

Numeric: minimum number of provenances (either resources or references) for interactions. Use zero or one to disable filtering.

consensus_percentile

Numeric: percentile threshold for the consensus score of generic categories in intercell annotations. The consensus score is the number of resources supporting the classification of an entity into a category based on combined information of many resources. Here you can apply a cut-off, keeping only the annotations supported by a higher number of resources than a certain percentile of each category. If NULL no filtering will be performed. The value is either in the 0-1 range, or will be divided by 100 if greater than 1. The percentiles will be calculated against the generic composite categories and then will be applied to their resource specific annotations and specific child categories.

loc_consensus_percentile

Numeric: similar to consensus_percentile for major localizations. For example, with a value of 50, the secreted, plasma membrane transmembrane or peripheral attributes will be TRUE only where at least 50 percent of the resources support these.

ligand_receptor

Logical. If TRUE, only ligand and receptor annotations will be used instead of the more generic transmitter and receiver categories.

simplify

Logical: keep only the most often used columns. This function combines a network data frame with two copies of the intercell annotation data frames, all of them already having quite some columns. With this option we keep only the names of the interacting pair, their intercellular communication roles, and the minimal information of the origin of both the interaction and the annotations.

unique_pairs

Logical: instead of having separate rows for each pair of annotations, drop the annotations and reduce the data frame to unique interacting pairs. See unique_intercell_network for details.

omnipath

Logical: shortcut to include the omnipath dataset in the interactions query.

ligrecextra

Logical: shortcut to include the ligrecextra dataset in the interactions query.

kinaseextra

Logical: shortcut to include the kinaseextra dataset in the interactions query.

pathwayextra

Logical: shortcut to include the pathwayextra dataset in the interactions query.

...

If simplify or unique_pairs is TRUE, additional column names can be passed here to dplyr::select on the final data frame. Otherwise ignored.

Value

An intercell network data frame filtered.

See Also

Examples

icn <- intercell_network()
icn_f <- filter_intercell_network(
    icn,
    consensus_percentile = 75,
    min_provenances = 3,
    simplify = TRUE
)

All paths between two groups of vertices

Description

Finds all paths up to length 'maxlen' between specified groups of vertices. This function is needed only becaues igraph's 'all_shortest_paths' finds only the shortest, not any path up to a defined length.

Usage

find_all_paths(
    graph,
    start,
    end,
    attr = NULL,
    mode = 'OUT',
    maxlen = 2,
    progress = TRUE
)

Arguments

graph

An igraph graph object.

start

Integer or character vector with the indices or names of one or more start vertices.

end

Integer or character vector with the indices or names of one or more end vertices.

attr

Character: name of the vertex attribute to identify the vertices by. Necessary if 'start' and 'end' are not igraph vertex ids but for example vertex names or labels.

mode

Character: IN, OUT or ALL. Default is OUT.

maxlen

Integer: maximum length of paths in steps, i.e. if maxlen = 3, then the longest path may consist of 3 edges and 4 nodes.

progress

Logical: show a progress bar.

Value

List of vertex paths, each path is a character or integer vector.

See Also

Examples

interactions <- import_omnipath_interactions()
graph <- interaction_graph(interactions)
paths <- find_all_paths(
    graph = graph,
    start = c('EGFR', 'STAT3'),
    end = c('AKT1', 'ULK1'),
    attr = 'name'
)

Recreate interaction records from evidences columns

Description

Recreate interaction records from evidences columns

Usage

from_evidences(data, .keep = FALSE)

Arguments

data

An interaction data frame from the OmniPath web service with evidences column.

.keep

Logical: keep the original "evidences" column when unnesting to separate columns by direction.

Details

The OmniPath interaction data frames specify interactions primarily by three columns: "is_directed", "is_stimulation" and "is_inhibition". Besides these, there are the "sources" and "references" columns that are always included in data frames created by OmnipathR and list the resources and literature references for each interaction, respectively. The optional "evidences" column is required to find out which of the resources and references support the direction or effect sign of the interaction. To properly recover information for arbitrary subsets of resources or datasets, the evidences can be filtered first, and then the standard data frame columns can be reconstructed from the selected evidences. This function is able to do the latter. It expects either an "evidences" column or evidences in their wide format 4 columns layout. It overwrites the standard columns of interaction records based on data extracted from the evidences, including the "curation_effort" and "consensus..." columns.

Note: The "curation_effort" might be calculated slightly differently from the version included in the OmniPath web service. Here we count the resources and the also add the number of references for each resource. E.g. a resource without any literatur reference counts as 1, while a resource with 3 references adds 4 to the value of the curation effort.

Note: If the "evidences" column has been already unnested to multiple columns ("positive", "negative", etc.) by unnest_evidences, then these will be used; otherwise, the column will be unnested within this function.

Note: This function (or rather its wrapper, only_from) is automatically applied if the 'strict_evidences' argument is passed to any function querying interactions (see omnipath-interactions).

Value

A copy of the input data frame with all the standard columns describing the direction, effect, resources and references of the interactions recreated based on the contents of the nested list evidences column(s).

See Also

Examples

## Not run: 
ci <- collectri(evidences = TRUE)
ci <- unnest_evidences(ci)
ci <- filter_evidences(datasets = 'collectri')
ci <- from_evidences(ci)
# the three lines above are equivalent to only_from(ci)
# and all the four lines above is equivalent to:
# collectri(strict_evidences = TRUE)

## End(Not run)

Access a built in database

Description

Databases are resources which might be costly to load but can be used many times by functions which usually automatically load and retrieve them from the database manager. Each database has a lifetime and will be unloaded automatically upon expiry.

Usage

get_db(key, param = NULL, reload = FALSE, ...)

Arguments

key

Character: the key of the database to load. For a list of available keys see omnipath_show_db.

param

List: override the defaults or pass further parameters to the database loader function. See the loader functions and their default parameters in omnipath_show_db. If the database is already loaded with different parameters it will be reloaded with the new parameters only if the reload option is TRUE.

reload

Reload the database if param passed here is different from the parameters used the last time the database was loaded. If different functions with different parameters access the database repeatedly and request reload the frequent reloads might cost substantial time and resource use.

...

Arguments for the loader function of the database. These override the default arguments.

Value

An object with the database contents. The exact format depends on the database, most often it is a data frame or a list.

See Also

omnipath_show_db.

Examples

organisms <- get_db('organisms')

Access an ontology database

Description

Retrieves an ontology database with relations in the desired data structure. The database is automatically loaded and the requested data structure is constructed if necessary. The databases stay loaded up to a certain time period (see the option omnipathr.db_lifetime). Hence the first one of repeated calls to this function might take long and the subsequent ones should be really quick.

Usage

get_ontology_db(key, rel_fmt = "tbl", child_parents = TRUE)

Arguments

key

Character: key of the ontology database. For the available keys see omnipath_show_db.

rel_fmt

Character: the data structure of the ontology relations. Posible values are 1) "tbl" a data frame, 2) "lst" a list or 3) "gra" a graph.

child_parents

Logical: whether the ontology relations should point from child to parents (TRUE) or from parent to children (FALSE).

Value

A list with the following elements: 1) "names" a table with term IDs and names; 2) "namespaces" a table to connect term IDs and namespaces they belong to; 3) "relations" a table with relations between terms and their parent terms; 4) "subsets" a table with terms and the subsets they are part of; 5) "obsolete" character vector with all the terms labeled as obsolete.

See Also

Examples

go <- get_ontology_db('go_basic', child_parents = FALSE)

Giant component of a graph

Description

For an igraph graph object returns its giant component.

Usage

giant_component(graph)

Arguments

graph

An igraph graph object.

Value

An igraph graph object containing only the giant component.

Examples

interactions <- import_post_translational_interactions()
graph <- interaction_graph(interactions)
graph_gc <- giant_component(graph)

Gene annotations from Gene Ontology

Description

Gene Ontology is an ontology of gene subcellular localizations, molecular functions and involvement in biological processes. Gene products across many organisms are annotated with the ontology terms. This function downloads the gene-ontology term associations for certain model organisms or all organisms. For a description of the columns see http://geneontology.org/docs/go-annotation-file-gaf-format-2.2/.

Usage

go_annot_download(organism = "human", aspects = c("C", "F", "P"), slim = NULL)

Arguments

organism

Character: either "chicken", "cow", "dog", "human", "pig" or "uniprot_all".

aspects

Character vector with some of the following elements: "C" (cellular component), "F" (molecular function) and "P" (biological process). Gene Ontology is three separate ontologies called as three aspects. By this parameter you can control which aspects to include in the output.

slim

Character: if not NULL, the name of a GOsubset (slim). instead of the full GO annotation, the slim annotation will be returned. See details at go_annot_slim. If TRUE, the "generic" slim will be used.

Value

A tibble (data frame) of annotations as it is provided by the database

Examples

goa_data <- go_annot_download()
goa_data
# # A tibble: 606,840 x 17
#    db       db_object_id db_object_symbol qualifier go_id   db_ref
#    <fct>    <chr>        <chr>            <fct>     <chr>   <chr>
#  1 UniProt. A0A024RBG1   NUDT4B           NA        GO:000. GO_REF:00.
#  2 UniProt. A0A024RBG1   NUDT4B           NA        GO:000. GO_REF:00.
#  3 UniProt. A0A024RBG1   NUDT4B           NA        GO:004. GO_REF:00.
#  4 UniProt. A0A024RBG1   NUDT4B           NA        GO:005. GO_REF:00.
#  5 UniProt. A0A024RBG1   NUDT4B           NA        GO:005. GO_REF:00.
# # . with 606,830 more rows, and 11 more variables:
# #   evidence_code <fct>, with_or_from <chr>, aspect <fct>,
# #   db_object_name <chr>, db_object_synonym <chr>,
# #   db_object_type <fct>, taxon <fct>, date <date>,
# #   assigned_by <fct>, annotation_extension <chr>,
# #   gene_product_from_id <chr>

GO slim gene annotations

Description

GO slims are subsets of the full GO which "give a broad overview of the ontology content without the detail of the specific fine grained terms". In order to annotate genes with GO slim terms, we take the annotations and search all ancestors of the terms up to the root of the ontology tree. From the ancestors we select the terms which are part of the slim subset.

Usage

go_annot_slim(
  organism = "human",
  slim = "generic",
  aspects = c("C", "F", "P"),
  cache = TRUE
)

Arguments

organism

Character: either "chicken", "cow", "dog", "human", "pig" or "uniprot_all".

slim

Character: the GO subset (GO slim) name. Available GO slims are: "agr" (Alliance for Genomics Resources), "generic", "aspergillus", "candida", "drosophila", "chembl", "metagenomic", "mouse", "plant", "pir" (Protein Information Resource), "pombe" and "yeast".

aspects

Character vector with some of the following elements: "C" (cellular component), "F" (molecular function) and "P" (biological process). Gene Ontology is three separate ontologies called as three aspects. By this parameter you can control which aspects to include in the output.

cache

Logical: Load the result from cache if available.

Details

Building the GO slim is resource intensive in its current implementation. For human annotation and generic GO slim it might take around 20 minutes. The result is saved into the cache so next time loading the data from there is really quick. If the cache option is FALSE the data will be built fresh (the annotation and ontology files still might come from cache), and the newly build GO slim will overwrite the cache instance.

Value

A tibble (data frame) of genes annotated with ontology terms in in the GO slim (subset).

See Also

Examples

## Not run: 
goslim <- go_annot_slim(organism = 'human', slim = 'generic')
goslim
# # A tibble: 276,371 x 8
#    db     db_object_id db_object_symbol go_id aspect db_object_name
#    <fct>  <chr>        <chr>            <chr> <fct>  <chr>
#  1 UniPr. A0A024RBG1   NUDT4B           GO:0. F      Diphosphoinosito.
#  2 UniPr. A0A024RBG1   NUDT4B           GO:0. F      Diphosphoinosito.
#  3 UniPr. A0A024RBG1   NUDT4B           GO:0. C      Diphosphoinosito.
#  4 UniPr. A0A024RBG1   NUDT4B           GO:0. C      Diphosphoinosito.
#  5 UniPr. A0A024RBG1   NUDT4B           GO:0. C      Diphosphoinosito.
# # . with 276,366 more rows, and 2 more variables:
# #   db_object_synonym <chr>, db_object_type <fct>

## End(Not run)

The Gene Ontology tree

Description

The Gene Ontology tree

Usage

go_ontology_download(
  basic = TRUE,
  tables = TRUE,
  subset = NULL,
  relations = c("is_a", "part_of", "occurs_in", "regulates", "positively_regulates",
    "negatively_regulates")
)

Arguments

basic

Logical: use the basic or the full version of GO. As written on the GO home page: "the basic version of the GO is filtered such that the graph is guaranteed to be acyclic and annotations can be propagated up the graph. The relations included are is a, part of, regulates, negatively regulates and positively regulates. This version excludes relationships that cross the 3 GO hierarchies. This version should be used with most GO-based annotation tools."

tables

In the result return data frames or nested lists. These later can be converted to each other if necessary. However converting from table to list is faster.

subset

Character: the GO subset (GO slim) name. GO slims are subsets of the full GO which "give a broad overview of the ontology content without the detail of the specific fine grained terms". This option, if not NULL, overrides the basic parameter. Available GO slims are: "agr" (Alliance for Genomics Resources), "generic", "aspergillus", "candida", "drosophila", "chembl", "metagenomic", "mouse", "plant", "pir" (Protein Information Resource), "pombe" and "yeast".

relations

Character vector: the relations to include in the processed data.

Value

A list with the following elements: 1) "names" a list with terms as names and names as values; 2) "namespaces" a list with terms as names and namespaces as values; 3) "relations" a list with relations between terms: terms are keys, values are lists with relations as names and character vectors of related terms as values; 4) "subsets" a list with terms as keys and character vectors of subset names as values (or NULL if the term does not belong to any subset); 5) "obsolete" character vector with all the terms labeled as obsolete. If the tables parameter is TRUE, "names", "namespaces", "relations" and "subsets" will be data frames (tibbles).

Examples

# retrieve the generic GO slim, a small subset of the full ontology
go <- go_ontology_download(subset = 'generic')

Interaction data frame from igraph graph object

Description

Convert an igraph graph object to interaction data frame. This is the reverse of the operation done by thje interaction_graph function. Networks can be easily converted to igraph objects, then you can make use of all igaph methods, and at the end, get back the interactions in a data frame, along with all new edge and node attributes.

Usage

graph_interaction(graph, implode = FALSE)

Arguments

graph

An igraph graph object created formerly from an OmniPath interactions data frame.

implode

Logical: restore the original state of the list type columns by imploding them to character vectors, subitems separated by semicolons.

Value

An interaction data frame.

See Also

interaction_graph


Downloads interactions from the Guide to Pharmacology database

Description

Downloads ligand-receptor interactions from the Guide to Pharmacology (IUPHAR/BPS) database (https://www.guidetopharmacology.org/).

Usage

guide2pharma_download()

Value

A tibble (data frame) of interactions as it is provided by the database

Examples

g2p_data <- guide2pharma_download()
g2p_data
# # A tibble: 21,586 x 38
#    target target_id target_gene_sym. target_uniprot target_ensembl_.
#    <chr>      <dbl> <chr>            <chr>          <chr>
#  1 12S-L.      1387 ALOX12           P18054         ENSG00000108839
#  2 15-LO.      1388 ALOX15           P16050         ENSG00000161905
#  3 15-LO.      1388 ALOX15           P16050         ENSG00000161905
#  4 15-LO.      1388 ALOX15           P16050         ENSG00000161905
# # . with 21,576 more rows, and 33 more variables: target_ligand <chr>,
# #   target_ligand_id <chr>, target_ligand_gene_symbol <chr>,
# ... (truncated)

Downloads a Harmonizome network dataset

Description

Downloads a single network dataset from Harmonizome https://maayanlab.cloud/Harmonizome.

Usage

harmonizome_download(dataset)

Arguments

dataset

The dataset part of the URL. Please refer to the download section of the Harmonizome webpage.

Value

Data frame (tibble) with interactions.

Examples

harmonizome_data <- harmonizome_download('phosphositeplus')
harmonizome_data
# # A tibble: 6,013 x 7
#    source   source_desc source_id target target_desc target_id weight
#    <chr>    <chr>           <dbl> <chr>  <chr>           <dbl>  <dbl>
#  1 TP53     na               7157 STK17A na               9263      1
#  2 TP53     na               7157 TP53RK na             112858      1
#  3 TP53     na               7157 SMG1   na              23049      1
#  4 UPF1     na               5976 SMG1   na              23049      1
# # . with 6,003 more rows

Tells if an interaction data frame has an extra_attrs column

Description

Tells if an interaction data frame has an extra_attrs column

Usage

has_extra_attrs(data)

Arguments

data

An interaction data frame.

Value

Logical: TRUE if the data frame has the "extra_attrs" column.

See Also

Examples

i <- omnipath(fields = "extra_attrs")
has_extra_attrs(i)

Identifier translation table from HMDB

Description

Identifier translation table from HMDB

Usage

hmdb_id_mapping_table(to, from, entity_type = "metabolite")

Arguments

to

Character or symbol: target ID type. See Details for possible values.

from

Character or symbol: source ID type. See Details for possible values.

entity_type

Character: "gene" and "smol" are short symbols for proteins, genes and small molecules respectively. Several other synonyms are also accepted.

Details

The arguments to and from can be provided either as character or as symbol (NSE). Their possible values are either HMDB XML tag names or synonyms listed at id_types.

Value

A data frame (tibble) with columns 'From' and 'To'.

See Also

Examples

hmdb_kegg <- hmdb_id_mapping_table("kegg", "hmdb")
hmdb_kegg

HMDB identifier type label

Description

HMDB identifier type label

Usage

hmdb_id_type(label)

Arguments

label

Character: an ID type label, as shown in the table at translate_ids

Value

Character: the HMDB specific ID type label, or the input unchanged if it could not be translated (still might be a valid identifier name). These labels should be valid HMDB field names, as used in HMDB XML files.

See Also

Examples

hmdb_id_type("hmdb")
# [1] "accession"

Field names for the HMDB metabolite dataset

Description

Field names for the HMDB metabolite dataset

Usage

hmdb_metabolite_fields()

Value

Character vector of field names.

See Also

Examples

hmdb_metabolite_fields()

Field names for the HMDB proteins dataset

Description

Field names for the HMDB proteins dataset

Usage

hmdb_protein_fields()

Value

Character vector of field names.

See Also

Examples

hmdb_protein_fields()

Download a HMDB XML file and process it into a table

Description

Download a HMDB XML file and process it into a table

Usage

hmdb_table(dataset = "metabolites", fields = NULL)

Arguments

dataset

Character: name of an HMDB XML dataset, such as "metabolites", "proteins", "urine", "serum", "csf", "saliva", "feces", "sweat".

fields

Character: fields to extract from the XML. This is a very minimal parser that is able to extract the text content of simple fields and multiple value fields which contain a list of leaves within one container tag under the record tag. A full list of fields available in HMDB is available by the hmdb_protein_fields and hmdb_metabolite_fields functions. By default, all fields available in the dataset are extracted.

Value

A data frame (tibble) with each column corresponding to a field.

See Also

Examples

hmdb_table()

Orthology table for a pair of organisms

Description

Orthologous pairs of genes for a pair of organisms from NCBI HomoloGene, using one identifier type.

Usage

homologene_download(
  target = 10090L,
  source = 9606L,
  id_type = "genesymbol",
  hgroup_size = FALSE
)

Arguments

target

Character or integer: name or ID of the target organism.

source

Character or integer: name or ID of the source organism.

id_type

Symbol or character: identifier type, possible values are "genesymbol", "entrez", "refseqp" or "gi".

hgroup_size

Logical: include a column with the size of the homology groups. This column distinguishes one-to-one and one-to-many or many-to-many mappings.

Details

The operation of this function is symmetric, *source* and *target* are interchangeable but determine the column layout of the output. The column "hgroup" is a numberic identifier of the homology groups. Most of the groups consist of one pair of orthologous genes (one-to-one mapping), and a few of them multiple ones (one-to-many or many-to-many mappings).

Value

A data frame with orthologous identifiers between the two organisms.

See Also

Examples

chimp_human <- homologene_download(chimpanzee, human, refseqp)
chimp_human
# # A tibble: 17,737 × 3
#    hgroup refseqp_source refseqp_target
#     <int> <chr>          <chr>
#  1      3 NP_000007.1    NP_001104286.1
#  2      5 NP_000009.1    XP_003315394.1
#  3      6 NP_000010.1    XP_508738.2
#  4      7 NP_001096.1    XP_001145316.1
#  5      9 NP_000014.1    XP_523792.2
# # . with 17,732 more rows

Organisms in NCBI HomoloGene

Description

Organisms in NCBI HomoloGene

Usage

homologene_organisms(name_type = "ncbi")

Arguments

name_type

Character: type of the returned name or identifier. Many synonyms are accepted, the shortest ones: "latin", "ncbi", "common", "ensembl". Case unsensitive.

Details

Not all NCBI Taxonomy IDs can be translated to common or latin names. It means some organisms will be missing if translated to those name types. In the future we will address this issue, until then if you want to see all organisms use NCBI Taxonomy IDs.

Value

A character vector of organism names.


Orthology data from NCBI HomoloGene

Description

Retrieves NCBI HomoloGene data without any processing. Processed tables are more useful for most purposes, see below other functions that provide those. Genes of various organisms are grouped into homology groups ("hgroup" column). Organisms are identified by NCBI Taxonomy IDs, genes are identified by four different identifier types.

Usage

homologene_raw()

Value

A data frame as provided by NCBI HomoloGene.

See Also

Examples

hg <- homologene_raw()
hg
# # A tibble: 275,237 × 6
#    hgroup ncbi_taxid entrez  genesymbol  gi        refseqp
#     <int>      <int> <chr>   <chr>       <chr>     <chr>
#  1      3       9606 34      ACADM       4557231   NP_000007.1
#  2      3       9598 469356  ACADM       160961497 NP_001104286.1
#  3      3       9544 705168  ACADM       109008502 XP_001101274.1
#  4      3       9615 490207  ACADM       545503811 XP_005622188.1
#  5      3       9913 505968  ACADM       115497690 NP_001068703.1
# # . with 275,232 more rows

# which organisms are available?
common_name(unique(hg$ncbi_taxid))
#  [1] "Human" "Chimpanzee" "Macaque" "Dog" "Cow" "Mouse" "Rat" "Zebrafish"
#  [9] "D. melanogaster" "Caenorhabditis elegans (PRJNA13758)"
# [11] "Tropical clawed frog" "Chicken"
# ...and 9 more organisms with missing English names.

Orthology table with UniProt IDs

Description

Orthologous pairs of UniProt IDs for a pair of organisms, based on NCBI HomoloGene data.

Usage

homologene_uniprot_orthology(target = 10090L, source = 9606L, by = entrez, ...)

Arguments

target

Character or integer: name or ID of the target organism.

source

Character or integer: name or ID of the source organism.

by

Symbol or character: the identifier type in NCBI HomoloGene to use. Possible values are "refseqp", "entrez", "genesymbol", "gi".

...

Further arguments passed to translate_ids.

Value

A data frame with orthologous pairs of UniProt IDs.

Examples

homologene_uniprot_orthology(by = genesymbol)
# # A tibble: 14,235 × 2
#    source target
#    <chr>  <chr>
#  1 P11310 P45952
#  2 P49748 P50544
#  3 P24752 Q8QZT1
#  4 Q04771 P37172
#  5 Q16586 P82350
# # . with 14,230 more rows

Downloads protein annotations from Human Phenotype Ontology

Description

Human Phenotype Ontology (HPO) provides a standardized vocabulary of phenotypic abnormalities encountered in human disease. Each term in the HPO describes a phenotypic abnormality. HPO currently contains over 13,000 terms and over 156,000 annotations to hereditary diseases. See more at https://hpo.jax.org/app/.

Usage

hpo_download()

Value

A tibble (data frame) of annotations as it is provided by the database

Examples

hpo_data <- hpo_download()
hpo_data
# # A tibble: 231,738 x 9
#    entrez_gene_id entrez_gene_symb. hpo_term_id hpo_term_name
#             <dbl> <chr>             <chr>       <chr>
#  1           8192 CLPP              HP:0000013  Hypoplasia of the ute.
#  2           8192 CLPP              HP:0004322  Short stature
#  3           8192 CLPP              HP:0000786  Primary amenorrhea
#  4           8192 CLPP              HP:0000007  Autosomal recessive i.
#  5           8192 CLPP              HP:0000815  Hypergonadotropic hyp.
# # . with 231,733 more rows, and 5 more variables:
# #   frequency_raw <chr>, frequency_hpo <chr>, info_gd_source <chr>,
# #   gd_source <chr>, disease_id <chr>

Downloads TF-target interactions from HTRIdb

Description

HTRIdb (https://www.lbbc.ibb.unesp.br/htri/) is a database of literature curated human TF-target interactions. As the database is recently offline, the data is distributed by the OmniPath rescued data repository (https://rescued.omnipathdb.org/).

Usage

htridb_download()

Value

Data frame (tibble) with interactions.

Examples

htridb_data <- htridb_download()
htridb_data
# # A tibble: 18,630 x 7
#      OID GENEID_TF SYMBOL_TF GENEID_TG SYMBOL_TG TECHNIQUE
#    <dbl>     <dbl> <chr>         <dbl> <chr>     <chr>
#  1 32399       142 PARP1           675 BRCA2     Electrophoretic Mobi.
#  2 32399       142 PARP1           675 BRCA2     Chromatin Immunoprec.
#  3 28907       196 AHR            1543 CYP1A1    Chromatin Immunoprec.
#  4 29466       196 AHR            1543 CYP1A1    Electrophoretic Mobi.
#  5 28911       196 AHR            1543 CYP1A1    Chromatin Immunoprec.
# # . with 18,620 more rows, and 1 more variable: PUBMED_ID <chr>

List available ID translation resources

Description

List available ID translation resources

Usage

id_translation_resources()

Value

A character vector with the names of the available ID translation resources.

Examples

id_translation_resources()

ID types and synonyms in identifier translation

Description

ID types and synonyms in identifier translation

Usage

id_types()

Value

Data frame with 4 columns: the ID type labels in the resource, their synonyms in OmniPath (this package), the name of the ID translation resource, and the entity type.

See Also

Examples

id_types()

Downloads and preprocesses network data from InWeb InBioMap

Description

Downloads the data by inbiomap_raw, extracts the UniProt IDs, Gene Symbols and scores and removes the irrelevant columns.

Usage

inbiomap_download(...)

Arguments

...

Passed to inbiomap_raw.

Value

A data frame (tibble) of interactions.

See Also

inbiomap_raw

Examples

## Not run: 
inbiomap_interactions <- inbiomap_download()
inbiomap_interactions

## End(Not run)
# # A tibble: 625,641 x 7
#    uniprot_a uniprot_b genesymbol_a genesymbol_b inferred score1 score2
#    <chr>     <chr>     <chr>        <chr>        <lgl>     <dbl>  <dbl>
#  1 A0A5B9    P01892    TRBC2        HLA-A        FALSE     0.417 0.458
#  2 A0AUZ9    Q96CV9    KANSL1L      OPTN         FALSE     0.155 0.0761
#  3 A0AV02    P24941    SLC12A8      CDK2         TRUE      0.156 0.0783
#  4 A0AV02    Q00526    SLC12A8      CDK3         TRUE      0.157 0.0821
#  5 A0AV96    P0CG48    RBM47        UBC          FALSE     0.144 0.0494
# # . with 625,631 more rows

Downloads network data from InWeb InBioMap

Description

Downloads the data from https://inbio-discover.com/map.html#downloads in tar.gz format, extracts the PSI MITAB table and returns it as a data frame.

Usage

inbiomap_raw(curl_verbose = FALSE)

Arguments

curl_verbose

Logical. Perform CURL requests in verbose mode for debugging purposes.

Value

A data frame (tibble) with the extracted interaction table.

See Also

inbiomap_download

Examples

## Not run: 
inbiomap_psimitab <- inbiomap_raw()

## End(Not run)

Datasets in the OmniPath Interactions database

Description

Datasets in the OmniPath Interactions database

Usage

interaction_datasets()

Value

Character: labels of interaction datasets.

Examples

interaction_datasets()

Build Omnipath interaction graph

Description

Transforms the interactions data frame to an igraph graph object.

Usage

interaction_graph(interactions = interactions)

Arguments

interactions

data.frame created by

Value

An igraph graph object.

See Also

Examples

interactions <- import_omnipath_interactions(resources = c('SignaLink3'))
g <- interaction_graph(interactions)

Interaction resources available in Omnipath

Description

Names of the resources available in https://omnipathdb.org/interactions.

Usage

interaction_resources(dataset = NULL)

Arguments

dataset

a dataset within the interactions query type. Currently available datasets are 'omnipath', 'kinaseextra', 'pathwayextra', 'ligrecextra', 'collectri', 'dorothea', 'tf_target', 'tf_mirna', 'mirnatarget', 'lncrna_mrna' and 'small_molecule_protein'.

Value

Character: names of the interaction resources.

See Also

Examples

interaction_resources()

Interaction types in the OmniPath Interactions database

Description

Interaction types in the OmniPath Interactions database

Usage

interaction_types()

Value

Character: labels of interaction types.

Examples

interaction_types()

Cell-cell communication roles from OmniPath

Description

Roles of proteins in intercellular communication from the https://omnipathdb.org/intercell endpoint of the OmniPath web service. It provides information on the roles in inter-cellular signaling. E.g. if a protein is a ligand, a receptor, an extracellular matrix (ECM) component, etc.

Usage

intercell(
  categories = NULL,
  parent = NULL,
  scope = NULL,
  aspect = NULL,
  source = NULL,
  transmitter = NULL,
  receiver = NULL,
  secreted = NULL,
  plasma_membrane_peripheral = NULL,
  plasma_membrane_transmembrane = NULL,
  proteins = NULL,
  topology = NULL,
  causality = NULL,
  consensus_percentile = NULL,
  loc_consensus_percentile = NULL,
  ...
)

Arguments

categories

vector containing the categories to be retrieved. All the genes belonging to those categories will be returned. For further information about the categories see get_intercell_categories.

parent

vector containing the parent classes to be retrieved. All the genes belonging to those classes will be returned. For furter information about the main classes see get_intercell_categories.

scope

either 'specific' or 'generic'

aspect

either 'locational' or 'functional'

source

either 'resource_specific' or 'composite'

transmitter

logical, include only transmitters i.e. proteins delivering signal from a cell to its environment.

receiver

logical, include only receivers i.e. proteins delivering signal to the cell from its environment.

secreted

logical, include only secreted proteins

plasma_membrane_peripheral

logical, include only plasma membrane peripheral membrane proteins.

plasma_membrane_transmembrane

logical, include only plasma membrane transmembrane proteins.

proteins

limit the query to certain proteins

topology

topology categories: one or more of 'secreted' (sec), 'plasma_membrane_peripheral' (pmp), 'plasma_membrane_transmembrane' (pmtm) (both short or long notation can be used).

causality

'transmitter' (trans), 'receiver' (rec) or 'both' (both short or long notation can be used).

consensus_percentile

Numeric: a percentile cut off for the consensus score of generic categories. The consensus score is the number of resources supporting the classification of an entity into a category based on combined information of many resources. Here you can apply a cut-off, keeping only the annotations supported by a higher number of resources than a certain percentile of each category. If NULL no filtering will be performed. The value is either in the 0-1 range, or will be divided by 100 if greater than 1. The percentiles will be calculated against the generic composite categories and then will be applied to their resource specific annotations and specific child categories.

loc_consensus_percentile

Numeric: similar to consensus_percentile for major localizations. For example, with a value of 50, the secreted, plasma membrane transmembrane or peripheral attributes will be true only where at least 50 percent of the resources support these.

...

Arguments passed on to omnipath_query

organism

Character or integer: name or NCBI Taxonomy ID of the organism. OmniPath is built of human data, and the web service provides orthology translated interactions and enzyme-substrate relationships for mouse and rat. For other organisms and query types, orthology translation will be called automatically on the downloaded human data before returning the result.

resources

Character vector: name of one or more resources. Restrict the data to these resources. For a complete list of available resources, call the '<query_type>_resources' functions for the query type of interst.

fields

Character vector: additional fields to include in the result. For a list of available fields, call 'query_info("interactions")'.

default_fields

Logical: if TRUE, the default fields will be included.

silent

Logical: if TRUE, no messages will be printed. By default a summary message is printed upon successful download.

logicals

Character vector: fields to be cast to logical.

format

Character: if "json", JSON will be retrieved and processed into a nested list; any other value will return data frame.

download_args

List: parameters to pass to the download function, which is 'readr::read_tsv' by default, and 'jsonlite::safe_load'.

license

Character: license restrictions. By default, data from resources allowing "academic" use is returned by OmniPath. If you use the data for work in a company, you can provide "commercial" or "for-profit", which will restrict the data to those records which are supported by resources that allow for-profit use.

password

Character: password for the OmniPath web service. You can provide a special password here which enables the use of 'license = "ignore"' option, completely bypassing the license filter.

exclude

Character vector: resource or dataset names to be excluded. The data will be filtered after download to remove records of the excluded datasets and resources.

json_param

List: parameters to pass to the 'jsonlite::fromJSON' when processing JSON columns embedded in the downloaded data. Such columns are "extra_attrs" and "evidences". These are optional columns which provide a lot of extra details about interactions.

strict_evidences

Logical: reconstruct the "sources" and "references" columns of interaction data frames based on the "evidences" column, strictly filtering them to the queried datasets and resources. Without this, the "sources" and "references" fields for each record might contain information for datasets and resources other than the queried ones, because the downloaded records are a result of a simple filtering of an already integrated data frame.

genesymbol_resource

Character: "uniprot" (default) or "ensembl". The OmniPath web service uses the primary gene symbols as provided by UniProt. By passing "ensembl" here, the UniProt gene symbols will be replaced by the ones used in Ensembl. This translation results in a loss of a few records, and multiplication of another few records due to ambiguous translation.

cache

Logical: use caching, load data from and save to the. The cache directory by default belongs to the user, located in the user's default cache directory, and named "OmnipathR". Find out about it by getOption("omnipathr.cachedir"). Can be changed by omnipath_set_cachedir.

Value

A data frame of intercellular communication roles.

See Also

Examples

ecm_proteins <- intercell(categories = "ecm")

Categories in the intercell database of OmniPath

Description

Retrieves a list of categories from https://omnipathdb.org/intercell.

Usage

intercell_categories()

Value

character vector with the different intercell categories

See Also

Examples

intercell_categories()

Quality filter for intercell annotations

Description

Quality filter for intercell annotations

Usage

intercell_consensus_filter(
  data,
  percentile = NULL,
  loc_percentile = NULL,
  topology = NULL
)

Arguments

data

A data frame with intercell annotations, as provided by intercell.

percentile

Numeric: a percentile cut off for the consensus score of composite categories. The consensus score is the number of resources supporting the classification of an entity into a category based on combined information of many resources. Here you can apply a cut-off, keeping only the annotations supported by a higher number of resources than a certain percentile of each category. If NULL no filtering will be performed. The value is either in the 0-1 range, or will be divided by 100 if greater than 1. The percentiles will be calculated against the generic composite categories and then will be applied to their resource specific annotations and specific child categories.

loc_percentile

Numeric: similar to percentile for major localizations. For example, with a value of 50, the secreted, plasma membrane transmembrane or peripheral attributes will be TRUE only where at least 50 percent of the resources support these.

topology

Character vector: list of allowed topologies, possible values are *"secreted"*, *"plasma_membrane_peripheral"* and *"plasma_membrane_transmembrane"*.

Value

The data frame in data filtered by the consensus scores.

See Also

Examples

ligand_receptor <- intercell(parent = c("ligand", "receptor"))
nrow(ligand_receptor)
# [1] 50174
lr_q50 <- intercell_consensus_filter(ligand_receptor, 50)
nrow(lr_q50)
# [1] 42863

Retrieves a list of the generic categories in the intercell database of OmniPath

Description

Retrieves a list of the generic categories from https://omnipathdb.org/intercell.

Usage

intercell_generic_categories()

Value

character vector with the different intercell main classes

See Also

Examples

intercell_generic_categories()

Intercellular communication network

Description

Imports an intercellular network by combining intercellular annotations and protein interactions. First imports a network of protein-protein interactions. Then, it retrieves annotations about the proteins intercellular communication roles, once for the transmitter (delivering information from the expressing cell) and second, the receiver (receiving signal and relaying it towards the expressing cell) side. These 3 queries can be customized by providing parameters in lists which will be passed to the respective methods (omnipath_interactions for the network and intercell for the annotations). Finally the 3 data frames combined in a way that the source proteins in each interaction annotated by the transmitter, and the target proteins by the receiver categories. If undirected interactions present (these are disabled by default) they will be duplicated, i.e. both partners can be both receiver and transmitter.

Usage

intercell_network(
  interactions_param = list(),
  transmitter_param = list(),
  receiver_param = list(),
  resources = NULL,
  entity_types = NULL,
  ligand_receptor = FALSE,
  high_confidence = FALSE,
  simplify = FALSE,
  unique_pairs = FALSE,
  consensus_percentile = NULL,
  loc_consensus_percentile = NULL,
  omnipath = TRUE,
  ligrecextra = TRUE,
  kinaseextra = !high_confidence,
  pathwayextra = !high_confidence,
  ...
)

Arguments

interactions_param

a list with arguments for an interactions query; omnipath-interactions.

transmitter_param

a list with arguments for intercell, to define the transmitter side of intercellular connections

receiver_param

a list with arguments for intercell, to define the receiver side of intercellular connections

resources

A character vector of resources to be applied to both the interactions and the annotations. For example, resources = 'CellChatDB' will download the transmitters and receivers defined by CellChatDB, connected by connections from CellChatDB.

entity_types

Character, possible values are "protein", "complex" or both.

ligand_receptor

Logical. If TRUE, only ligand and receptor annotations will be used instead of the more generic transmitter and receiver categories.

high_confidence

Logical: shortcut to do some filtering in order to include only higher confidence interactions. The intercell database of OmniPath covers a very broad range of possible ways of cell to cell communication, and the pieces of information, such as localization, topology, function and interaction, are combined from many, often independent sources. This unavoidably result some weird and unexpected combinations which are false positives in the context of intercellular communication. This option sets some minimum criteria to remove most (but definitely not all!) of the wrong connections. These criteria are the followings: 1) the receiver must be plasma membrane transmembrane; 2) the curation effort for interactions must be larger than one; 3) the consensus score for annotations must be larger than the 50 percentile within the generic category (you can override this by consensus_percentile). 4) the transmitter must be secreted or exposed on the plasma membrane. 5) The major localizations have to be supported by at least 30 percent of the relevant resources ( you can override this by loc_consensus_percentile). 6) The datasets with lower level of curation (kinaseextra and pathwayextra) will be disabled. These criteria are of medium stringency, you can always tune them to be more relaxed or stringent by filtering manually, using filter_intercell_network.

simplify

Logical: keep only the most often used columns. This function combines a network data frame with two copies of the intercell annotation data frames, all of them already having quite some columns. With this option we keep only the names of the interacting pair, their intercellular communication roles, and the minimal information of the origin of both the interaction and the annotations.

unique_pairs

Logical: instead of having separate rows for each pair of annotations, drop the annotations and reduce the data frame to unique interacting pairs. See unique_intercell_network for details.

consensus_percentile

Numeric: a percentile cut off for the consensus score of generic categories in intercell annotations. The consensus score is the number of resources supporting the classification of an entity into a category based on combined information of many resources. Here you can apply a cut-off, keeping only the annotations supported by a higher number of resources than a certain percentile of each category. If NULL no filtering will be performed. The value is either in the 0-1 range, or will be divided by 100 if greater than 1. The percentiles will be calculated against the generic composite categories and then will be applied to their resource specific annotations and specific child categories.

loc_consensus_percentile

Numeric: similar to consensus_percentile for major localizations. For example, with a value of 50, the secreted, plasma membrane transmembrane or peripheral attributes will be TRUE only where at least 50 percent of the resources support these.

omnipath

Logical: shortcut to include the omnipath dataset in the interactions query.

ligrecextra

Logical: shortcut to include the ligrecextra dataset in the interactions query.

kinaseextra

Logical: shortcut to include the kinaseextra dataset in the interactions query.

pathwayextra

Logical: shortcut to include the pathwayextra dataset in the interactions query.

...

If simplify or unique_pairs is TRUE, additional column names can be passed here to dplyr::select on the final data frame. Otherwise ignored.

Details

By default this function creates almost the largest possible network of intercellular interactions. However, this might contain a large number of false positives. Please refer to the documentation of the arguments, especially high_confidence, and the filter_intercell_network function. Note: if you restrict the query to certain intercell annotation resources or small categories, it's not recommended to use the consensus_percentile or high_confidence options, instead filter the network with filter_intercell_network for more consistent results.

Value

A dataframe containing information about protein-protein interactions and the inter-cellular roles of the protiens involved in those interactions.

See Also

Examples

intercell_network <- intercell_network(
    interactions_param = list(datasets = 'ligrecextra'),
    receiver_param = list(categories = c('receptor', 'transporter')),
    transmitter_param = list(categories = c('ligand', 'secreted_enzyme'))
)

Retrieves a list of intercellular communication resources available in OmniPath

Description

Retrieves a list of the databases from https://omnipathdb.org/intercell.

Usage

intercell_resources(dataset = NULL)

Arguments

dataset

ignored at this query type

Value

character vector with the names of the databases

See Also

Examples

intercell_resources()

Full list of intercell categories and resources

Description

Full list of intercell categories and resources

Usage

intercell_summary()

Value

A data frame of categories and resources.

Examples

ic_cat <- intercell_categories()
ic_cat
# # A tibble: 1,125 x 3
#    category                parent                  database
#    <chr>                   <chr>                   <chr>
#  1 transmembrane           transmembrane           UniProt_location
#  2 transmembrane           transmembrane           UniProt_topology
#  3 transmembrane           transmembrane           UniProt_keyword
#  4 transmembrane           transmembrane_predicted Phobius
#  5 transmembrane_phobius   transmembrane_predicted Almen2009
# # . with 1,120 more rows

Looks like an ontology ID

Description

Tells if the input has the typical format of ontology IDs, i.e. a code of capital letters, a colon, followed by a numeric code.

Usage

is_ontology_id(terms)

Arguments

terms

Character vector with strings to check.

Value

A logical vector with the same length as the input.

Examples

is_ontology_id(c('GO:0000001', 'reproduction'))
# [1]  TRUE FALSE

Check for SwissProt IDs

Description

Check for SwissProt IDs

Usage

is_swissprot(uniprots, organism = 9606)

Arguments

uniprots

Character vector of UniProt IDs.

organism

Character or integer: name or identifier of the organism.

Value

Logical vector TRUE for SwissProt IDs and FALSE for any other element.

Examples

is_swissprot(c("Q05BL1", "A0A654IBU3", "P00533"))
# [1] FALSE FALSE TRUE

Check for TrEMBL IDs

Description

Check for TrEMBL IDs

Usage

is_trembl(uniprots, organism = 9606)

Arguments

uniprots

Character vector of UniProt IDs.

organism

Character or integer: name or identifier of the organism.

Value

Logical vector TRUE for TrEMBL IDs and FALSE for any other element.

Examples

is_trembl(c("Q05BL1", "A0A654IBU3", "P00533"))
# [1] TRUE TRUE FALSE

Looks like a UniProt ID?

Description

This function checks only the format of the IDs, no guarantee that these IDs exist in UniProt.

Usage

is_uniprot(identifiers)

Arguments

identifiers

Character: one or more identifiers (typically a single string, a vector or a data frame column).

Value

Logical: true if all elements in the input (except NAs) looks like valid UniProt IDs. If the input is not a character vector, 'FALSE' is returned.

Examples

is_uniprot(all_uniprot_acs())
# [1] TRUE
is_uniprot("P00533")
# [1] TRUE
is_uniprot("pizza")
# [1] FALSE

Information about a KEGG Pathway

Description

Information about a KEGG Pathway

Usage

kegg_info(pathway_id)

Arguments

pathway_id

Character: a KEGG Pathway identifier, e.g. "hsa04710". For a complete list of IDs see kegg_pathway_list.

Value

List with the pathway information.

See Also

Examples

kegg_info('map00563')

Open a KEGG Pathway diagram in the browser

Description

Open a KEGG Pathway diagram in the browser

Usage

kegg_open(pathway_id)

Arguments

pathway_id

Character: a KEGG Pathway identifier, e.g. "hsa04710". For a complete list of IDs see kegg_pathway_list.

Details

To open URLs in the web browser the "browser" option must to be set to a a valid executable. You can check the value of this option by getOption("browser"). If your browser is firefox and the executable is located in the system path, you can set the option to point to it: options(browser = "firefox"). To make it a permanent setting, you can also include this in your .Rprofile file.

Value

Returns NULL.

See Also

Examples

if(any(getOption('browser') != '')) kegg_open('hsa04710')

Protein pathway annotations

Description

Downloads all KEGG pathways and creates a table of protein-pathway annotations.

Usage

kegg_pathway_annotations(pathways = NULL)

Arguments

pathways

A table of KEGG pathways as produced by kegg_pathways_download.

Value

A data frame (tibble) with UniProt IDs and pathway names.

See Also

kegg_pathways_download

Examples

## Not run: 
kegg_pw_annot <- kegg_pathway_annotations()
kegg_pw_annot
# # A tibble: 7,341 x 4
#    uniprot genesymbol pathway                pathway_id
#    <chr>   <chr>      <chr>                  <chr>
#  1 Q03113  GNA12      MAPK signaling pathway hsa04010
#  2 Q9Y4G8  RAPGEF2    MAPK signaling pathway hsa04010
#  3 Q13972  RASGRF1    MAPK signaling pathway hsa04010
#  4 O95267  RASGRP1    MAPK signaling pathway hsa04010
#  5 P62834  RAP1A      MAPK signaling pathway hsa04010
# # . with 7,336 more rows

## End(Not run)

Download one KEGG pathway

Description

Downloads one pathway diagram from the KEGG Pathways database in KGML format and processes the XML to extract the interactions.

Usage

kegg_pathway_download(
  pathway_id,
  process = TRUE,
  max_expansion = NULL,
  simplify = FALSE
)

Arguments

pathway_id

Character: a KEGG pathway identifier, for example "hsa04350".

process

Logical: process the data or return it in raw format. processing means joining the entries and relations into a single data frame and adding UniProt IDs.

max_expansion

Numeric: the maximum number of relations derived from a single relation record. As one entry might represent more than one molecular entities, one relation might yield a large number of relations in the processing. This happens in a combinatorial way, e.g. if the two entries represent 3 and 4 entities, that results 12 relations. If NULL, all relations will be expanded.

simplify

Logical: remove KEGG's internal identifiers and the pathway annotations, keep only unique interactions with direction and effect sign.

Value

A data frame (tibble) of interactions if process is TRUE, otherwise a list with two data frames: "entries" is a raw table of the entries while "relations" is a table of relations extracted from the KGML file.

See Also

Examples

tgf_pathway <- kegg_pathway_download('hsa04350')
tgf_pathway
# # A tibble: 50 x 12
#    source target type  effect arrow relation_id kegg_id_source
#    <chr>  <chr>  <chr> <chr>  <chr> <chr>       <chr>
#  1 51     49     PPrel activ. -->   hsa04350:1  hsa:7040 hsa:.
#  2 57     55     PPrel activ. -->   hsa04350:2  hsa:151449 hs.
#  3 34     32     PPrel activ. -->   hsa04350:3  hsa:3624 hsa:.
#  4 20     17     PPrel activ. -->   hsa04350:4  hsa:4838
#  5 60     46     PPrel activ. -->   hsa04350:5  hsa:4086 hsa:.
# # . with 45 more rows, and 5 more variables: genesymbol_source <chr>,
# #   uniprot_source <chr>, kegg_id_target <chr>,
# #   genesymbol_target <chr>, uniprot_target <chr>

List of KEGG pathways

Description

Retrieves a list of available KEGG pathways.

Usage

kegg_pathway_list()

Value

Data frame of pathway names and identifiers.

See Also

Examples

kegg_pws <- kegg_pathway_list()
kegg_pws
# # A tibble: 521 x 2
#    id       name
#    <chr>    <chr>
#  1 map01100 Metabolic pathways
#  2 map01110 Biosynthesis of secondary metabolites
#  3 map01120 Microbial metabolism in diverse environments
#  4 map01200 Carbon metabolism
#  5 map01210 2-Oxocarboxylic acid metabolism
#  6 map01212 Fatty acid metabolism
#  7 map01230 Biosynthesis of amino acids
# # . with 514 more rows

Download the KEGG Pathways database

Description

Downloads all pathway diagrams in the KEGG Pathways database in KGML format and processes the XML to extract the interactions.

Usage

kegg_pathways_download(max_expansion = NULL, simplify = FALSE)

Arguments

max_expansion

Numeric: the maximum number of relations derived from a single relation record. As one entry might represent more than one molecular entities, one relation might yield a large number of relations in the processing. This happens in a combinatorial way, e.g. if the two entries represent 3 and 4 entities, that results 12 relations. If NULL, all relations will be expanded.

simplify

Logical: remove KEGG's internal identifiers and the pathway annotations, keep only unique interactions with direction and effect sign.

Value

A data frame (tibble) of interactions.

See Also

Examples

## Not run: 
kegg_pw <- kegg_pathways_download(simplify = TRUE)
kegg_pw
# # A tibble: 6,765 x 6
#    uniprot_source uniprot_target type  effect genesymbol_source
#    <chr>          <chr>          <chr> <chr>  <chr>
#  1 Q03113         Q15283         PPrel activ. GNA12
#  2 Q9Y4G8         P62070         PPrel activ. RAPGEF2
#  3 Q13972         P62070         PPrel activ. RASGRF1
#  4 O95267         P62070         PPrel activ. RASGRP1
#  5 P62834         P15056         PPrel activ. RAP1A
# # . with 6,760 more rows, and 1 more variable: genesymbol_target <chr>

## End(Not run)

Download a pathway diagram as a picture

Description

Downloads a KEGG Pathway diagram as a PNG image.

Usage

kegg_picture(pathway_id, path = NULL)

Arguments

pathway_id

Character: a KEGG Pathway identifier, e.g. "hsa04710". For a complete list of IDs see kegg_pathway_list.

path

Character: save the image to this path. If NULL, the image will be saved in the current directory under the name <pathway_id>.png.

Value

Invisibly returns the path to the downloaded file.

See Also

kegg_pathway_list

Examples

kegg_picture('hsa04710')
kegg_picture('hsa04710', path = 'foo/bar')
kegg_picture('hsa04710', path = 'foo/bar/circadian.png')

Interactions from KGML

Description

Processes KEGG Pathways data extracted from a KGML file. Joins the entries and relations into a single data frame and translates the Gene Symbols to UniProt IDs.

Usage

kegg_process(entries, relations, max_expansion = NULL, simplify = FALSE)

Arguments

entries

A data frames with entries extracted from a KGML file by kegg_pathway_download.

relations

A data frames with relations extracted from a KGML file by kegg_pathway_download.

max_expansion

Numeric: the maximum number of relations derived from a single relation record. As one entry might represent more than one molecular entities, one relation might yield a large number of relations in the processing. This happens in a combinatorial way, e.g. if the two entries represent 3 and 4 entities, that results 12 relations. If NULL, all relations will be expanded.

simplify

Logical: remove KEGG's internal identifiers and the pathway annotations, keep only unique interactions with direction and effect sign.

Value

A data frame (tibble) of interactions. In rare cases when a pathway doesn't contain any relation, returns NULL.

See Also

Examples

hsa04350 <- kegg_pathway_download('hsa04350', process = FALSE)
tgf_pathway <- kegg_process(hsa04350$entries, hsa04350$relations)
tgf_pathway
# # A tibble: 50 x 12
#    source target type  effect arrow relation_id kegg_id_source
#    <chr>  <chr>  <chr> <chr>  <chr> <chr>       <chr>
#  1 51     49     PPrel activ. -->   hsa04350:1  hsa:7040 hsa:.
#  2 57     55     PPrel activ. -->   hsa04350:2  hsa:151449 hs.
#  3 34     32     PPrel activ. -->   hsa04350:3  hsa:3624 hsa:.
#  4 20     17     PPrel activ. -->   hsa04350:4  hsa:4838
#  5 60     46     PPrel activ. -->   hsa04350:5  hsa:4086 hsa:.
# # . with 45 more rows, and 5 more variables: genesymbol_source <chr>,
# #   uniprot_source <chr>, kegg_id_target <chr>,
# #   genesymbol_target <chr>, uniprot_target <chr>

Latin (scientific) names of organisms

Description

Latin (scientific) names of organisms

Usage

latin_name(name)

Arguments

name

Vector with any kind of organism name or identifier, can be also mixed type.

Value

Character vector with latin (scientific) names, NA if a name in the input could not be found.

See Also

Examples

latin_name(c(9606, "cat", "dog"))
# [1] "Homo sapiens" "Felis catus" "Canis lupus familiaris"
latin_name(c(9606, "cat", "doggy"))
# [1] "Homo sapiens" "Felis catus"  NA

Load a built in database

Description

Load a built in database

Usage

load_db(key, param = list())

Arguments

key

Character: the key of the database to load. For a list of available keys see omnipath_show_db.

param

List: override the defaults or pass further parameters to the database loader function. See the loader functions and their default parameters in omnipath_show_db.

Details

This function loads a database which is stored within the package namespace until its expiry. The loaded database is accessible by get_db and the loading process is typically initiated by get_db, not by the users directly.

Value

Returns NULL.

See Also

omnipath_show_db, get_db

Examples

load_db('go_slim')
omnipath_show_db()

NCBI Taxonomy IDs of organisms

Description

NCBI Taxonomy IDs of organisms

Usage

ncbi_taxid(name)

Arguments

name

Vector with any kind of organism name or identifier, can be also mixed type.

Value

Integer vector with NCBI Taxonomy IDs, NA if a name in the input could not be found.

See Also

Examples

ncbi_taxid(c("Homo sapiens", "cat", "dog"))
# [1] 9606 9685 9615
ncbi_taxid(c(9606, "cat", "doggy"))
# [1] 9606 9685   NA

Construct a NicheNet ligand-target model

Description

Construct a NicheNet ligand-target model

Usage

nichenet_build_model(optimization_results, networks, use_weights = TRUE)

Arguments

optimization_results

The outcome of NicheNet parameter optimization as produced by nichenet_optimization.

networks

A list with NicheNet format signaling, ligand-receptor and gene regulatory networks as produced by nichenet_networks.

use_weights

Logical: whether to use the optimized weights.

Value

A named list with two elements: 'weighted_networks' and 'optimized_parameters'.

Examples

## Not run: 
expression <- nichenet_expression_data()
networks <- nichenet_networks()
optimization_results <- nichenet_optimization(networks, expression)
nichenet_model <- nichenet_build_model(optimization_results, networks)

## End(Not run)

Expression data from ligand-receptor perturbation experiments used by NicheNet

Description

NicheNet uses expression data from a collection of published ligand or receptor KO or perturbation experiments to build its model. This function retrieves the original expression data, deposited in Zenodo (https://zenodo.org/record/3260758).

Usage

nichenet_expression_data()

Value

Nested list, each element contains a data frame of processed expression data and key variables about the experiment.

Examples

exp_data <- nichenet_expression_data()
head(names(exp_data))
# [1] "bmp4_tgfb"     "tgfb_bmp4"     "nodal_Nodal"   "spectrum_Il4"
# [5] "spectrum_Tnf"  "spectrum_Ifng"
purrr::map_chr(head(exp_data), 'from')
#     bmp4_tgfb     tgfb_bmp4   nodal_Nodal  spectrum_Il4  spectrum_Tnf
#       "BMP4"       "TGFB1"       "NODAL"         "IL4"         "TNF"
# spectrum_Ifng
#       "IFNG"

Builds a NicheNet gene regulatory network

Description

Builds gene regulatory network prior knowledge for NicheNet using multiple resources.

Usage

nichenet_gr_network(
  omnipath = list(),
  harmonizome = list(),
  regnetwork = list(),
  htridb = list(),
  remap = list(),
  evex = list(),
  pathwaycommons = list(),
  trrust = list(),
  only_omnipath = FALSE
)

Arguments

omnipath

List with paramaters to be passed to nichenet_gr_network_omnipath.

harmonizome

List with paramaters to be passed to nichenet_gr_network_harmonizome.

regnetwork

List with paramaters to be passed to nichenet_gr_network_regnetwork.

htridb

List with paramaters to be passed to nichenet_gr_network_htridb.

remap

List with paramaters to be passed to nichenet_gr_network_remap.

evex

List with paramaters to be passed to nichenet_gr_network_evex.

pathwaycommons

List with paramaters to be passed to nichenet_gr_network_pathwaycommons.

trrust

List with paramaters to be passed to nichenet_gr_network_trrust.

only_omnipath

Logical: a shortcut to use only OmniPath as network resource.

Value

A network data frame (tibble) with gene regulatory interactions suitable for use with NicheNet.

See Also

Examples

# load everything with the default parameters:
gr_network <- nichenet_gr_network()

# less targets from ReMap, not using RegNetwork:
gr_network <- nichenet_gr_network(
    # I needed to disable ReMap here due to some issues
    # of one of the Bioconductor build servers
    # remap = list(top_targets = 200),
    remap = NULL,
    regnetwork = NULL,
)

# use only OmniPath:
gr_network_omnipath <- nichenet_gr_network(only_omnipath = TRUE)

NicheNet gene regulatory network from EVEX

Description

Builds a gene regulatory network using data from the EVEX database and converts it to a format suitable for NicheNet.

Usage

nichenet_gr_network_evex(
  top_confidence = 0.75,
  indirect = FALSE,
  regulation_of_expression = FALSE
)

Arguments

top_confidence

Double, between 0 and 1. Threshold based on the quantile of the confidence score.

indirect

Logical: whether to include indirect interactions.

regulation_of_expression

Logical: whether to include also the "regulation of expression" type interactions.

Value

Data frame of interactions in NicheNet format.

Data frame with gene regulatory interactions in NicheNet format.

See Also

Examples

# use only the 10% with the highest confidence:
evex_gr_network <- nichenet_gr_network_evex(top_confidence = .9)

NicheNet gene regulatory network from Harmonizome

Description

Builds gene regulatory network prior knowledge for NicheNet using Harmonizome

Usage

nichenet_gr_network_harmonizome(
  datasets = c("cheappi", "encodetfppi", "jasparpwm", "transfac", "transfacpwm",
    "motifmap", "geotf", "geokinase", "geogene"),
  ...
)

Arguments

datasets

The datasets to use. For possible values please refer to default value and the Harmonizome webpage.

...

Ignored.

Value

Data frame with gene regulatory interactions in NicheNet format.

See Also

Examples

# use only JASPAR and TRANSFAC:
hz_gr_network <- nichenet_gr_network_harmonizome(
    datasets = c('jasparpwm', 'transfac', 'transfacpwm')
)

NicheNet gene regulatory network from HTRIdb

Description

Builds a gene regulatory network using data from the HTRIdb database and converts it to a format suitable for NicheNet.

Usage

nichenet_gr_network_htridb()

Value

Data frame with gene regulatory interactions in NicheNet format.

See Also

htridb_download, nichenet_gr_network

Examples

htri_gr_network <- nichenet_gr_network_htridb()

Builds gene regulatory network for NicheNet using OmniPath

Description

Retrieves network prior knowledge from OmniPath and provides it in a format suitable for NicheNet. This method never downloads the 'ligrecextra' dataset because the ligand-receptor interactions are supposed to come from nichenet_lr_network_omnipath.

Usage

nichenet_gr_network_omnipath(min_curation_effort = 0, ...)

Arguments

min_curation_effort

Lower threshold for curation effort

...

Passed to import_transcriptional_interactions

Value

A network data frame (tibble) with gene regulatory interactions suitable for use with NicheNet.

See Also

Examples

# use interactions up to confidence level "C" from DoRothEA:
op_gr_network <- nichenet_gr_network_omnipath(
    dorothea_levels = c('A', 'B', 'C')
)

NicheNet gene regulatory network from PathwayCommons

Description

Builds gene regulation prior knowledge for NicheNet using PathwayCommons.

Usage

nichenet_gr_network_pathwaycommons(
  interaction_types = "controls-expression-of",
  ...
)

Arguments

interaction_types

Character vector with PathwayCommons interaction types. Please refer to the default value and the PathwayCommons webpage.

...

Ignored.

Value

Data frame with gene regulatory interactions in NicheNet format.

See Also

Examples

pc_gr_network <- nichenet_gr_network_pathwaycommons()

NicheNet gene regulatory network from RegNetwork

Description

Builds a gene regulatory network using data from the RegNetwork database and converts it to a format suitable for NicheNet.

Usage

nichenet_gr_network_regnetwork()

Value

Data frame with gene regulatory interactions in NicheNet format.

See Also

Examples

regn_gr_network <- nichenet_gr_network_regnetwork()

NicheNet gene regulatory network from ReMap

Description

Builds a gene regulatory network using data from the ReMap database and converts it to a format suitable for NicheNet.

Usage

nichenet_gr_network_remap(
  score = 100,
  top_targets = 500,
  only_known_tfs = TRUE
)

Arguments

score

Numeric: a minimum score between 0 and 1000, records with lower scores will be excluded. If NULL no filtering performed.

top_targets

Numeric: the number of top scoring targets for each TF. Essentially the maximum number of targets per TF. If NULL the number of targets is not restricted.

only_known_tfs

Logical: whether to exclude TFs which are not in TF census.

Value

Data frame with gene regulatory interactions in NicheNet format.

See Also

Examples

# use only max. top 100 targets for each TF:
remap_gr_network <- nichenet_gr_network_remap(top_targets = 100)

NicheNet gene regulatory network from TRRUST

Description

Builds a gene regulatory network using data from the TRRUST database and converts it to a format suitable for NicheNet.

Usage

nichenet_gr_network_trrust()

Value

Data frame with gene regulatory interactions in NicheNet format.

See Also

Examples

trrust_gr_network <- nichenet_gr_network_trrust()

Calls the NicheNet ligand activity analysis

Description

Calls the NicheNet ligand activity analysis

Usage

nichenet_ligand_activities(
  ligand_target_matrix,
  lr_network,
  expressed_genes_transmitter,
  expressed_genes_receiver,
  genes_of_interest,
  background_genes = NULL,
  n_top_ligands = 42,
  n_top_targets = 250
)

Arguments

ligand_target_matrix

A matrix with rows and columns corresponding to ligands and targets, respectively. Produced by nichenet_ligand_target_matrix or nichenetr::construct_ligand_target_matrix.

lr_network

A data frame with ligand-receptor interactions, as produced by nichenet_lr_network.

expressed_genes_transmitter

Character vector with the gene symbols of the genes expressed in the cells transmitting the signal.

expressed_genes_receiver

Character vector with the gene symbols of the genes expressed in the cells receiving the signal.

genes_of_interest

Character vector with the gene symbols of the genes of interest. These are the genes in the receiver cell population that are potentially affected by ligands expressed by interacting cells (e.g. genes differentially expressed upon cell-cell interaction).

background_genes

Character vector with the gene symbols of the genes to be used as background.

n_top_ligands

How many of the top ligands to include in the ligand-target table.

n_top_targets

For each ligand, how many of the top targets to include in the ligand-target table.

Value

A named list with 'ligand_activities' (a tibble giving several ligand activity scores; following columns in the tibble: $test_ligand, $auroc, $aupr and $pearson) and 'ligand_target_links' (a tibble with columns ligand, target and weight (i.e. regulatory potential score)).

Examples

## Not run: 
networks <- nichenet_networks()
expression <- nichenet_expression_data()
optimization_results <- nichenet_optimization(networks, expression)
nichenet_model <- nichenet_build_model(optimization_results, networks)
lt_matrix <- nichenet_ligand_target_matrix(
    nichenet_model$weighted_networks,
    networks$lr_network,
    nichenet_model$optimized_parameters
)
ligand_activities <- nichenet_ligand_activities(
    ligand_target_matrix = lt_matrix,
    lr_network = networks$lr_network,
    # the rest of the parameters should come
    # from your transcriptomics data:
    expressed_genes_transmitter = expressed_genes_transmitter,
    expressed_genes_receiver = expressed_genes_receiver,
    genes_of_interest = genes_of_interest
)

## End(Not run)

Creates a NicheNet ligand-target matrix

Description

Creates a NicheNet ligand-target matrix

Usage

nichenet_ligand_target_matrix(
  weighted_networks,
  lr_network,
  optimized_parameters,
  use_weights = TRUE,
  construct_ligand_target_matrix_param = list()
)

Arguments

weighted_networks

Weighted networks as provided by nichenet_build_model.

lr_network

A data frame with ligand-receptor interactions, as produced by nichenet_lr_network.

optimized_parameters

The outcome of NicheNet parameter optimization as produced by nichenet_build_model.

use_weights

Logical: wether the network sources are weighted. In this function it only affects the output file name.

construct_ligand_target_matrix_param

Override parameters for nichenetr::construct_ligand_target_matrix.

Value

A matrix containing ligand-target probability scores.

Examples

## Not run: 
networks <- nichenet_networks()
expression <- nichenet_expression_data()
optimization_results <- nichenet_optimization(networks, expression)
nichenet_model <- nichenet_build_model(optimization_results, networks)
lt_matrix <- nichenet_ligand_target_matrix(
    nichenet_model$weighted_networks,
    networks$lr_network,
    nichenet_model$optimized_parameters
)

## End(Not run)

Builds a NicheNet ligand-receptor network

Description

Builds ligand-receptor network prior knowledge for NicheNet using multiple resources.

Usage

nichenet_lr_network(
  omnipath = list(),
  guide2pharma = list(),
  ramilowski = list(),
  only_omnipath = FALSE,
  quality_filter_param = list()
)

Arguments

omnipath

List with paramaters to be passed to nichenet_lr_network_omnipath.

guide2pharma

List with paramaters to be passed to nichenet_lr_network_guide2pharma.

ramilowski

List with paramaters to be passed to nichenet_lr_network_ramilowski.

only_omnipath

Logical: a shortcut to use only OmniPath as network resource.

quality_filter_param

Arguments for filter_intercell_network (quality filtering of the OmniPath ligand-receptor network). It is recommended to check these parameters and apply some quality filtering. The defaults already ensure certain filtering, but you might want more relaxed or stringent options.

Value

A network data frame (tibble) with ligand-receptor interactions suitable for use with NicheNet.

See Also

Examples

# load everything with the default parameters:
lr_network <- nichenet_lr_network()

# don't use Ramilowski:
lr_network <- nichenet_lr_network(ramilowski = NULL)

# use only OmniPath:
lr_network_omnipath <- nichenet_lr_network(only_omnipath = TRUE)

Ligand-receptor network from Guide to Pharmacology

Description

Downloads ligand-receptor interactions from the Guide to Pharmacology database and converts it to a format suitable for NicheNet.

Usage

nichenet_lr_network_guide2pharma()

Value

Data frame with ligand-receptor interactions in NicheNet format.

See Also

nichenet_lr_network, guide2pharma_download

Examples

g2p_lr_network <- nichenet_lr_network_guide2pharma()

Builds ligand-receptor network for NicheNet using OmniPath

Description

Retrieves network prior knowledge from OmniPath and provides it in a format suitable for NicheNet. This method never downloads the 'ligrecextra' dataset because the ligand-receptor interactions are supposed to come from nichenet_lr_network_omnipath.

Usage

nichenet_lr_network_omnipath(quality_filter_param = list(), ...)

Arguments

quality_filter_param

List with arguments for filter_intercell_network. It is recommended to check these parameters and apply some quality filtering. The defaults already ensure certain filtering, but you might want more relaxed or stringent options.

...

Passed to import_intercell_network

Value

A network data frame (tibble) with ligand-receptor interactions suitable for use with NicheNet.

See Also

Examples

# use only ligand-receptor interactions (not for example ECM-adhesion):
op_lr_network <- nichenet_lr_network_omnipath(ligand_receptor = TRUE)

# use only CellPhoneDB and Guide to Pharmacology:
op_lr_network <- nichenet_lr_network_omnipath(
    resources = c('CellPhoneDB', 'Guide2Pharma')
)

# only interactions where the receiver is a transporter:
op_lr_network <- nichenet_lr_network_omnipath(
    receiver_param = list(parent = 'transporter')
)

Ligand-receptor network from Ramilowski 2015

Description

Downloads ligand-receptor interactions from Supplementary Table 2 of the paper 'A draft network of ligand–receptor-mediated multicellular signalling in human' (Ramilowski et al. 2015, https://www.nature.com/articles/ncomms8866). It converts the downloaded table to a format suitable for NicheNet.

Usage

nichenet_lr_network_ramilowski(
  evidences = c("literature supported", "putative")
)

Arguments

evidences

Character: evidence types, "literature supported", "putative" or both.

Value

Data frame with ligand-receptor interactions in NicheNet format.

See Also

Examples

# use only the literature supported data:
rami_lr_network <- nichenet_lr_network_ramilowski(
    evidences = 'literature supported'
)

Executes the full NicheNet pipeline

Description

Builds all prior knowledge data required by NicheNet. For this it calls a multitude of methods to download and combine data from various databases according to the settings. The content of the prior knowledge data is highly customizable, see the documentation of the related functions. After the prior knowledge is ready, it performs parameter optimization to build a NicheNet model. This results a weighted ligand- target matrix. Then, considering the expressed genes from user provided data, a gene set of interest and background genes, it executes the NicheNet ligand activity analysis.

Usage

nichenet_main(
  only_omnipath = FALSE,
  expressed_genes_transmitter = NULL,
  expressed_genes_receiver = NULL,
  genes_of_interest = NULL,
  background_genes = NULL,
  use_weights = TRUE,
  n_top_ligands = 42,
  n_top_targets = 250,
  signaling_network = list(),
  lr_network = list(),
  gr_network = list(),
  small = FALSE,
  tiny = FALSE,
  make_multi_objective_function_param = list(),
  objective_function_param = list(),
  mlrmbo_optimization_param = list(),
  construct_ligand_target_matrix_param = list(),
  results_dir = NULL,
  quality_filter_param = list()
)

Arguments

only_omnipath

Logical: use only OmniPath for network knowledge. This is a simple switch for convenience, further options are available by the other arguments. By default we use all available resources. The networks can be customized on a resource by resource basis, as well as providing custom parameters for individual resources, using the parameters 'signaling_network', 'lr_network' and 'gr_network'.

expressed_genes_transmitter

Character vector with the gene symbols of the genes expressed in the cells transmitting the signal.

expressed_genes_receiver

Character vector with the gene symbols of the genes expressed in the cells receiving the signal.

genes_of_interest

Character vector with the gene symbols of the genes of interest. These are the genes in the receiver cell population that are potentially affected by ligands expressed by interacting cells (e.g. genes differentially expressed upon cell-cell interaction).

background_genes

Character vector with the gene symbols of the genes to be used as background.

use_weights

Logical: calculate and use optimized weights for resources (i.e. one resource seems to be better than another, hence the former is considered with a higher weight).

n_top_ligands

How many of the top ligands to include in the ligand-target table.

n_top_targets

How many of the top targets (for each of the top ligands) to consider in the ligand-target table.

signaling_network

A list of parameters for building the signaling network, passed to nichenet_signaling_network.

lr_network

A list of parameters for building the ligand-receptor network, passed to nichenet_lr_network.

gr_network

A list of parameters for building the gene regulatory network, passed to nichenet_gr_network.

small

Logical: build a small network for testing purposes, using only OmniPath data. It is also a high quality network, it is reasonable to try the analysis with this small network.

tiny

Logical: build an even smaller network for testing purposes. As this involves random subsetting, it's not recommended to use this network for analysis.

make_multi_objective_function_param

Override parameters for smoof::makeMultiObjectiveFunction.

objective_function_param

Override additional arguments passed to the objective function.

mlrmbo_optimization_param

Override arguments for nichenetr::mlrmbo_optimization.

construct_ligand_target_matrix_param

Override parameters for nichenetr::construct_ligand_target_matrix.

results_dir

Character: path to the directory to save intermediate and final outputs from NicheNet methods.

quality_filter_param

Arguments for filter_intercell_network (quality filtering of the OmniPath ligand-receptor network). It is recommended to check these parameters and apply some quality filtering. The defaults already ensure certain filtering, but you might want more relaxed or stringent options.

Details

About small and tiny networks: Building a NicheNet model is computationally demanding, taking several hours to run. As this is related to the enormous size of the networks, to speed up testing we can use smaller networks, around 1,000 times smaller, with few thousands of interactions instead of few millions. Random subsetting of the whole network would result disjunct fragments, instead we load only a few resources. To run the whole pipeline with tiny networks use nichenet_test.

Value

A named list with the intermediate and final outputs of the pipeline: 'networks', 'expression', 'optimized_parameters', 'weighted_networks' and 'ligand_target_matrix'.

See Also

Examples

## Not run: 
nichenet_results <- nichenet_main(
    # altering some network resource parameters, the rest
    # of the resources will be loaded according to the defaults
    signaling_network = list(
        cpdb = NULL, # this resource will be excluded
        inbiomap = NULL,
        evex = list(min_confidence = 1.0) # override some parameters
    ),
    gr_network = list(only_omnipath = TRUE),
    n_top_ligands = 20,
    # override the default number of CPU cores to use
    mlrmbo_optimization_param = list(ncores = 4)
)

## End(Not run)

Builds NicheNet network prior knowledge

Description

Builds network knowledge required by NicheNet. For this it calls a multitude of methods to download and combine data from various databases according to the settings. The content of the prior knowledge data is highly customizable, see the documentation of the related functions.

Usage

nichenet_networks(
  signaling_network = list(),
  lr_network = list(),
  gr_network = list(),
  only_omnipath = FALSE,
  small = FALSE,
  tiny = FALSE,
  quality_filter_param = list()
)

Arguments

signaling_network

A list of parameters for building the signaling network, passed to nichenet_signaling_network

lr_network

A list of parameters for building the ligand-receptor network, passed to nichenet_lr_network

gr_network

A list of parameters for building the gene regulatory network, passed to nichenet_gr_network

only_omnipath

Logical: a shortcut to use only OmniPath as network resource.

small

Logical: build a small network for testing purposes, using only OmniPath data. It is also a high quality network, it is reasonable to try the analysis with this small network.

tiny

Logical: build an even smaller network for testing purposes. As this involves random subsetting, it's not recommended to use this network for analysis.

quality_filter_param

Arguments for filter_intercell_network (quality filtering of the OmniPath ligand-receptor network). It is recommended to check these parameters and apply some quality filtering. The defaults already ensure certain filtering, but you might want more relaxed or stringent options.

Value

A named list with three network data frames (tibbles): the signaling, the ligand-receptor (lr) and the gene regulatory (gr) networks.

See Also

Examples

## Not run: 
networks <- nichenet_networks()
dplyr::sample_n(networks$gr_network, 10)
# # A tibble: 10 x 4
#    from    to       source               database
#    <chr>   <chr>    <chr>                <chr>
#  1 MAX     ALG3     harmonizome_ENCODE   harmonizome
#  2 MAX     IMPDH1   harmonizome_ENCODE   harmonizome
#  3 SMAD5   LCP1     Remap_5              Remap
#  4 HNF4A   TNFRSF19 harmonizome_CHEA     harmonizome
#  5 SMC3    FAP      harmonizome_ENCODE   harmonizome
#  6 E2F6    HIST1H1B harmonizome_ENCODE   harmonizome
#  7 TFAP2C  MAT2B    harmonizome_ENCODE   harmonizome
#  8 USF1    TBX4     harmonizome_TRANSFAC harmonizome
#  9 MIR133B FETUB    harmonizome_TRANSFAC harmonizome
# 10 SP4     HNRNPH2  harmonizome_ENCODE   harmonizome

## End(Not run)

# use only OmniPath:
omnipath_networks <- nichenet_networks(only_omnipath = TRUE)

Optimizes NicheNet model parameters

Description

Optimize NicheNet method parameters, i.e. PageRank parameters and source weights, basedon a collection of experiments where the effect of a ligand on gene expression was measured.

Usage

nichenet_optimization(
  networks,
  expression,
  make_multi_objective_function_param = list(),
  objective_function_param = list(),
  mlrmbo_optimization_param = list()
)

Arguments

networks

A list with NicheNet format signaling, ligand-receptor and gene regulatory networks as produced by nichenet_networks.

expression

A list with expression data from ligand perturbation experiments, as produced by nichenet_expression_data.

make_multi_objective_function_param

Override parameters for smoof::makeMultiObjectiveFunction.

objective_function_param

Override additional arguments passed to the objective function.

mlrmbo_optimization_param

Override arguments for nichenetr::mlrmbo_optimization.

Value

A result object from the function mlrMBO::mbo. Among other things, this contains the optimal parameter settings, the output corresponding to every input etc.

Examples

## Not run: 
networks <- nichenet_networks()
expression <- nichenet_expression_data()
optimization_results <- nichenet_optimization(networks, expression)

## End(Not run)

Removes experiments with orphan ligands

Description

Removes from the expression data the perturbation experiments involving ligands without connections.

Usage

nichenet_remove_orphan_ligands(expression, lr_network)

Arguments

expression

Expression data as returned by nichenet_expression_data.

lr_network

A NicheNet format ligand-recptor network data frame as produced by nichenet_lr_network.

Value

The same list as 'expression' with certain elements removed.

Examples

lr_network <- nichenet_lr_network()
expression <- nichenet_expression_data()
expression <- nichenet_remove_orphan_ligands(expression, lr_network)

Path to the current NicheNet results directory

Description

Path to the directory to save intermediate and final outputs from NicheNet methods.

Usage

nichenet_results_dir()

Value

Character: path to the NicheNet results directory.

Examples

nichenet_results_dir()
# [1] "nichenet_results"

Builds a NicheNet signaling network

Description

Builds signaling network prior knowledge for NicheNet using multiple resources.

Usage

nichenet_signaling_network(
  omnipath = list(),
  pathwaycommons = list(),
  harmonizome = list(),
  vinayagam = list(),
  cpdb = list(),
  evex = list(),
  inbiomap = list(),
  only_omnipath = FALSE
)

Arguments

omnipath

List with paramaters to be passed to nichenet_signaling_network_omnipath.

pathwaycommons

List with paramaters to be passed to nichenet_signaling_network_pathwaycommons.

harmonizome

List with paramaters to be passed to nichenet_signaling_network_harmonizome.

vinayagam

List with paramaters to be passed to nichenet_signaling_network_vinayagam.

cpdb

List with paramaters to be passed to nichenet_signaling_network_cpdb.

evex

List with paramaters to be passed to nichenet_signaling_network_evex.

inbiomap

List with paramaters to be passed to nichenet_signaling_network_inbiomap.

only_omnipath

Logical: a shortcut to use only OmniPath as network resource.

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

See Also

Examples

# load everything with the default parameters:
# we don't load inBio Map due to the - hopefully
# temporary - issues of their server
sig_network <- nichenet_signaling_network(inbiomap = NULL, cpdb = NULL)

# override parameters for some resources:
sig_network <- nichenet_signaling_network(
    omnipath = list(resources = c('SIGNOR', 'SignaLink3', 'SPIKE')),
    pathwaycommons = NULL,
    harmonizome = list(datasets = c('phosphositeplus', 'depod')),
    # we can not include this in everyday tests as it takes too long:
    # cpdb = list(complex_max_size = 1, min_score = .98),
    cpdb = NULL,
    evex = list(min_confidence = 1.5),
    inbiomap = NULL
)

# use only OmniPath:
sig_network_omnipath <- nichenet_signaling_network(only_omnipath = TRUE)

Builds signaling network for NicheNet using ConsensusPathDB

Description

Builds signaling network prior knowledge using ConsensusPathDB (CPDB) data. Note, the interactions from CPDB are not directed and many of them comes from complex expansion. Find out more at http://cpdb.molgen.mpg.de/.

Usage

nichenet_signaling_network_cpdb(...)

Arguments

...

Passed to consensuspathdb_download.

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

See Also

Examples

# use some parameters stricter than default:
cpdb_signaling_network <- nichenet_signaling_network_cpdb(
    complex_max_size = 2,
    min_score = .99
)

NicheNet signaling network from EVEX

Description

Builds signaling network prior knowledge for NicheNet from the EVEX database.

Usage

nichenet_signaling_network_evex(top_confidence = 0.75, indirect = FALSE, ...)

Arguments

top_confidence

Double, between 0 and 1. Threshold based on the quantile of the confidence score.

indirect

Logical: whether to include indirect interactions.

...

Ignored.

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

See Also

Examples

ev_signaling_network <- nichenet_signaling_network_evex(
    top_confidence = .9
)

NicheNet signaling network from Harmonizome

Description

Builds signaling network prior knowledge for NicheNet using Harmonizome

Usage

nichenet_signaling_network_harmonizome(
  datasets = c("phosphositeplus", "kea", "depod"),
  ...
)

Arguments

datasets

The datasets to use. For possible values please refer to default value and the Harmonizome webpage.

...

Ignored.

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

Examples

# use only KEA and PhosphoSite:
hz_signaling_network <- nichenet_signaling_network_harmonizome(
    datasets = c('kea', 'phosphositeplus')
)

NicheNet signaling network from InWeb InBioMap

Description

Builds signaling network prior knowledge for NicheNet from the InWeb InBioMap database.

Usage

nichenet_signaling_network_inbiomap(...)

Arguments

...

Ignored.

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

See Also

nichenet_signaling_network, inbiomap_download

Examples

## Not run: 
ib_signaling_network <- nichenet_signaling_network_inbiomap()

## End(Not run)

Builds signaling network for NicheNet using OmniPath

Description

Retrieves network prior knowledge from OmniPath and provides it in a format suitable for NicheNet. This method never downloads the 'ligrecextra' dataset because the ligand-receptor interactions are supposed to come from nichenet_lr_network_omnipath.

Usage

nichenet_signaling_network_omnipath(min_curation_effort = 0, ...)

Arguments

min_curation_effort

Lower threshold for curation effort

...

Passed to import_post_translational_interactions

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

See Also

Examples

# use interactions with at least 2 evidences (reference or database)
op_signaling_network <- nichenet_signaling_network_omnipath(
    min_curation_effort = 2
)

NicheNet signaling network from PathwayCommons

Description

Builds signaling network prior knowledge for NicheNet using PathwayCommons.

Usage

nichenet_signaling_network_pathwaycommons(
  interaction_types = c("catalysis-precedes", "controls-phosphorylation-of",
    "controls-state-change-of", "controls-transport-of", "in-complex-with",
    "interacts-with"),
  ...
)

Arguments

interaction_types

Character vector with PathwayCommons interaction types. Please refer to the default value and the PathwayCommons webpage.

...

Ignored.

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

Examples

# use only the "controls-transport-of" interactions:
pc_signaling_network <- nichenet_signaling_network_pathwaycommons(
    interaction_types = 'controls-transport-of'
)

NicheNet signaling network from Vinayagam

Description

Builds signaling network prior knowledge for NicheNet using Vinayagam 2011 Supplementary Table S6. Find out more at https://doi.org/10.1126/scisignal.2001699.

Usage

nichenet_signaling_network_vinayagam(...)

Arguments

...

Ignored.

Value

A network data frame (tibble) with signaling interactions suitable for use with NicheNet.

Examples

vi_signaling_network <- nichenet_signaling_network_vinayagam()

Run the NicheNet pipeline with a little dummy network

Description

Loads a tiny network and runs the NicheNet pipeline with low number of iterations in the optimization process. This way the pipeline runs in a reasonable time in order to test the code. Due to the random subsampling disconnected networks might be produced sometimes. If you see an error like "Error in if (sd(prediction_vector) == 0) ... missing value where TRUE/FALSE needed", the random subsampled input is not appropriate. In this case just interrupt and call again. This test ensures the computational integrity of the pipeline. If it fails during the optimization process, try to start it over several times, even restarting R. The unpredictability is related to mlrMBO and nichenetr not being prepared to handle certain conditions, and it's also difficult to find out which conditions lead to which errors. At least 3 different errors appear time to time, depending on the input. It also seems like restarting R sometimes helps, suggesting that the entire system might be somehow stateful. You can ignore the Parallelization was not stopped warnings on repeated runs.

Usage

nichenet_test(...)

Arguments

...

Passed to nichenet_main.

Value

A named list with the intermediate and final outputs of the pipeline: 'networks', 'expression', 'optimized_parameters', 'weighted_networks' and 'ligand_target_matrix'.

Examples

## Not run: 
nnt <- nichenet_test()

## End(Not run)

Workarounds using NicheNet without attaching the package

Description

NicheNet requires the availability of some lazy loaded external data which are not available if the package is not loaded and attached. Also, the BBmisc::convertToShortString used for error reporting in mlrMBO::evalTargetFun.OptState is patched here to print longer error messages. Maybe it's a better solution to attach nichenetr before running the NicheNet pipeline. Alternatively you can try to call this function in the beginning. Why we don't call this automatically is just because we don't want to load datasets from another package without the user knowing about it.

Usage

nichenet_workarounds()

Value

Returns NULL.

Examples

## Not run: 
nichenet_workarounds()

## End(Not run)

Generic OBO parser

Description

Reads the contents of an OBO file and processes it into data frames or a list based data structure.

Usage

obo_parser(
  path,
  relations = c("is_a", "part_of", "occurs_in", "regulates", "positively_regulates",
    "negatively_regulates"),
  shorten_namespace = TRUE,
  tables = TRUE
)

Arguments

path

Path to the OBO file.

relations

Character vector: process only these relations.

shorten_namespace

Logical: shorten the namespace to a single letter code (as usual for Gene Ontology, e.g. cellular_component = "C").

tables

Logical: return data frames (tibbles) instead of nested lists.

Value

A list with the following elements: 1) "names" a list with terms as names and names as values; 2) "namespaces" a list with terms as names and namespaces as values; 3) "relations" a list with relations between terms: terms are keys, values are lists with relations as names and character vectors of related terms as values; 4) "subsets" a list with terms as keys and character vectors of subset names as values (or NULL if the term does not belong to any subset); 5) "obsolete" character vector with all the terms labeled as obsolete. If the tables parameter is TRUE, "names", "namespaces", "relations" and "subsets" will be data frames (tibbles).

See Also

Examples

goslim_url <-
    "http://current.geneontology.org/ontology/subsets/goslim_generic.obo"
path <- tempfile()
httr::GET(goslim_url, httr::write_disk(path, overwrite = TRUE))
obo <- obo_parser(path, tables = FALSE)
unlink(path)
names(obo)
# [1] "names"      "namespaces" "relations"  "subsets"    "obsolete"
head(obo$relations, n = 2)
# $`GO:0000001`
# $`GO:0000001`$is_a
# [1] "GO:0048308" "GO:0048311"
#
# $`GO:0000002`
# $`GO:0000002`$is_a
# [1] "GO:0007005"

Orthologous Matrix (OMA) codes of organisms

Description

Note: OMA species codes are whenever possible identical to UniProt codes.

Usage

oma_code(name)

Arguments

name

Vector with any kind of organism name or identifier, can be also mixed type.

Value

A character vector with the Orthologous Matrix (OMA) codes of the organisms.

See Also

Examples

oma_code(c(10090, "cjacchus", "Vicugna pacos"))
# [1] "MOUSE" "CALJA" "VICPA"

Organism identifiers from the Orthologous Matrix

Description

Organism identifiers from the Orthologous Matrix

Usage

oma_organisms()

Value

A data frame with organism identifiers.

See Also

ensembl_organisms

Examples

oma_organisms()

Orthologous gene pairs between two organisms

Description

From the web API of Orthologous Matrix (OMA). Items which could not be translated to 'id_type' (but present in the data with their internal OMA IDs) are removed.

Usage

oma_pairwise(
  organism_a = "human",
  organism_b = "mouse",
  id_type = "uniprot",
  mappings = c("1:1", "1:m", "n:1", "n:m"),
  only_ids = TRUE
)

Arguments

organism_a

Name or identifier of an organism.

organism_b

Name or identifier of another organism.

id_type

The gene or protein identifier to use in the table. For a list of supported ID types see 'omnipathr.env$id_types$oma'. In addition, "genesymbol" is supported, in this case oma_pairwise_genesymbols will be called automatically.

mappings

Character vector: control ambiguous mappings:

  • 1:1 - unambiguous

  • 1:m - one-to-many

  • n:1 - many-to-one

  • n:m - many-to-many

only_ids

Logical: include only the two identifier columns, not the mapping type and the orthology group columns.

Value

A data frame with orthologous gene pairs.

Examples

oma_pairwise("human", "mouse", "uniprot")
# # A tibble: 21,753 × 4
#    id_organism_a id_organism_b mapping oma_group
#    <chr>         <chr>         <chr>       <dbl>
#  1 Q15326        Q8R5C8        1:1       1129380
#  2 Q9Y2E4        B2RQ71        1:1        681224
#  3 Q92615        Q6A0A2        1:1       1135087
#  4 Q9BZE4        Q99ME9        1:1       1176239
#  5 Q9BXS1        Q8BFZ6        1:m            NA
# # … with 21,743 more rows

Orthologous pairs of gene symbols between two organisms

Description

The Orthologous Matrix (OMA), a resource of orthologous relationships between genes, doesn't provide gene symbols, the identifier preferred in many bioinformatics pipelines. Hence this function wraps oma_pairwise by translating the identifiers used in OMA to gene symbols. Items that can not be translated to 'id_type' (but present in the data with their internal OMA IDs) will be removed. Then, in this function we translate the identifiers to gene symbols.

Usage

oma_pairwise_genesymbols(
  organism_a = "human",
  organism_b = "mouse",
  oma_id_type = "uniprot_entry",
  mappings = c("1:1", "1:m", "n:1", "n:m"),
  only_ids = TRUE
)

Arguments

organism_a

Name or identifier of an organism.

organism_b

Name or identifier of another organism.

oma_id_type

Character: the gene or protein identifier to be queried from OMA. These IDs will be translated to 'id_type'.

mappings

Character vector: control ambiguous mappings:

  • 1:1 - unambiguous

  • 1:m - one-to-many

  • n:1 - many-to-one

  • n:m - many-to-many

only_ids

Logical: include only the two identifier columns, not the mapping type and the orthology group columns.

Value

A data frame with orthologous gene pairs.

Examples

oma_pairwise_genesymbols("human", "mouse")

Orthologous pairs between two organisms for ID types not supported by OMA

Description

The Orthologous Matrix (OMA), a resource of orthologous relationships between genes, doesn't provide gene symbols, the identifier preferred in many bioinformatics pipelines. Hence this function wraps oma_pairwise by translating the identifiers used in OMA to gene symbols. Items that can not be translated to 'id_type' (but present in the data with their internal OMA IDs) will be removed. Then, in this function we translate the identifiers to the desired ID type.

Usage

oma_pairwise_translated(
  organism_a = "human",
  organism_b = "mouse",
  id_type = "uniprot",
  oma_id_type = "uniprot_entry",
  mappings = c("1:1", "1:m", "n:1", "n:m"),
  only_ids = TRUE
)

Arguments

organism_a

Name or identifier of an organism.

organism_b

Name or identifier of another organism.

id_type

The gene or protein identifier to use in the table. For a list of supported ID types see 'omnipathr.env$id_types$oma'. These are the identifiers that will be translated to gene symbols.

oma_id_type

Character: the gene or protein identifier to be queried from OMA. These IDs will be translated to 'id_type'.

mappings

Character vector: control ambiguous mappings:

  • 1:1 - unambiguous

  • 1:m - one-to-many

  • n:1 - many-to-one

  • n:m - many-to-many

only_ids

Logical: include only the two identifier columns, not the mapping type and the orthology group columns.

Value

A data frame with orthologous gene pairs.

Examples

oma_pairwise_translated("human", "mouse")

Keeps only the latest versions of complete downloads

Description

Removes the old versions, the failed downloads and the files in the cache directory which are missing from the database. For more flexible operations use omnipath_cache_remove and omnipath_cache_clean.

Usage

omnipath_cache_autoclean()

Value

Invisibl returns the cache database (list of cache records).

Examples

## Not run: 
omnipath_cache_autoclean()

## End(Not run)

Removes the items from the cache directory which are unknown by the cache database

Description

Removes the items from the cache directory which are unknown by the cache database

Usage

omnipath_cache_clean()

Value

Returns 'NULL'.

Examples

omnipath_cache_clean()

Removes the cache database entries without existing files

Description

Removes the cache database entries without existing files

Usage

omnipath_cache_clean_db(...)

Arguments

...

Ignored.

Value

Returns 'NULL'.

Examples

omnipath_cache_clean_db()

Sets the download status to ready for a cache item

Description

Sets the download status to ready for a cache item

Usage

omnipath_cache_download_ready(version, key = NULL)

Arguments

version

Version of the cache item. If does not exist a new version item will be created

key

Key of the cache item

Value

Character: invisibly returns the version number of the cache version item.

Examples

bioc_url <- 'https://bioconductor.org/'
# request a new version item (or retrieve the latest)
new_version <- omnipath_cache_latest_or_new(url = bioc_url)
# check if the version item is not a finished download
new_version$status
# [1] "unknown"
# download the file
httr::GET(bioc_url, httr::write_disk(new_version$path, overwrite = TRUE))
# report to the cache database that the download is ready
omnipath_cache_download_ready(new_version)
# now the status is ready:
version <- omnipath_cache_latest_or_new(url = bioc_url)
version$status
# "ready"
version$dl_finished
# [1] "2021-03-09 16:48:38 CET"
omnipath_cache_remove(url = bioc_url) # cleaning up

Filters the versions from one cache record

Description

Filters the versions based on multiple conditions: their age and status

Usage

omnipath_cache_filter_versions(
  record,
  latest = FALSE,
  max_age = NULL,
  min_age = NULL,
  status = CACHE_STATUS$READY
)

Arguments

record

A cache record

latest

Return the most recent version

max_age

The maximum age in days (e.g. 5: 5 days old or more recent)

min_age

The minimum age in days (e.g. 5: 5 days old or older)

status

Character vector with status codes. By default only the versions with 'ready' (completed download) status are selected

Value

Character vector with version IDs, NA if no version satisfies the conditions.

Examples

# creating an example cache record
bioc_url <- 'https://bioconductor.org/'
version <- omnipath_cache_latest_or_new(url = bioc_url)
httr::GET(bioc_url, httr::write_disk(version$path, overwrite = TRUE))
omnipath_cache_download_ready(version)
record <- dplyr::first(omnipath_cache_search('biocond'))

# only the versions with status "ready"
version_numbers <- omnipath_cache_filter_versions(record, status = 'ready')
omnipath_cache_remove(url = bioc_url) # cleaning up

Retrieves one item from the cache directory

Description

Retrieves one item from the cache directory

Usage

omnipath_cache_get(
  key = NULL,
  url = NULL,
  post = NULL,
  payload = NULL,
  create = TRUE,
  ...
)

Arguments

key

The key of the cache record

url

URL pointing to the resource

post

HTTP POST parameters as a list

payload

HTTP data payload

create

Create a new entry if doesn't exist yet

...

Passed to omnipath_cache_record (internal function)

Value

Cache record: an existing record if the entry already exists, otherwise a newly created and inserted record

Examples

# create an example cache record
bioc_url <- 'https://bioconductor.org/'
version <- omnipath_cache_latest_or_new(url = bioc_url)
omnipath_cache_remove(url = bioc_url) # cleaning up

# retrieve the cache record
record <- omnipath_cache_get(url = bioc_url)
record$key
# [1] "41346a00fb20d2a9df03aa70cf4d50bf88ab154a"
record$url
# [1] "https://bioconductor.org/"

Generates a hash which identifies an element in the cache database

Description

Generates a hash which identifies an element in the cache database

Usage

omnipath_cache_key(url, post = NULL, payload = NULL)

Arguments

url

Character vector with URLs

post

List with the HTTP POST parameters or a list of lists if the url vector is longer than 1. NULL for queries without POST parameters.

payload

HTTP data payload. List with multiple items if the url vector is longer than 1. NULL for queries without data.

Value

Character vector of cache record keys.

Examples

bioc_url <- 'https://bioconductor.org/'
omnipath_cache_key(bioc_url)
# [1] "41346a00fb20d2a9df03aa70cf4d50bf88ab154a"

The latest or a new version of a cache record

Description

Looks up a record in the cache and returns its latest valid version. If the record doesn't exist or no valid version available, creates a new one.

Usage

omnipath_cache_latest_or_new(
  key = NULL,
  url = NULL,
  post = NULL,
  payload = NULL,
  create = TRUE,
  ...
)

Arguments

key

The key of the cache record

url

URL pointing to the resource

post

HTTP POST parameters as a list

payload

HTTP data payload

create

Logical: whether to create and return a new version. If FALSE only the latest existing valid version is returned, if available.

...

Passed to omnipath_cache_get

Value

A cache version item.

Examples

## Not run: 
# retrieve the latest version of the first cache record
# found by the search keyword "bioplex"
latest_bioplex <-
    omnipath_cache_latest_or_new(
        names(omnipath_cache_search('bioplex'))[1]
    )

latest_bioplex$dl_finished
# [1] "2021-03-09 14:28:50 CET"
latest_bioplex$path
# [1] "/home/denes/.cache/OmnipathR/378e0def2ac97985f629-1.rds"

## End(Not run)

# create an example cache record
bioc_url <- 'https://bioconductor.org/'
version <- omnipath_cache_latest_or_new(url = bioc_url)
omnipath_cache_remove(url = bioc_url) # cleaning up

Finds the most recent version in a cache record

Description

Finds the most recent version in a cache record

Usage

omnipath_cache_latest_version(record)

Arguments

record

A cache record

Value

Character: the version ID with the most recent download finished time


Loads an R object from the cache

Description

Loads the object from RDS format.

Usage

omnipath_cache_load(
  key = NULL,
  version = NULL,
  url = NULL,
  post = NULL,
  payload = NULL
)

Arguments

key

Key of the cache item

version

Version of the cache item. If does not exist or NULL, the latest version will be retrieved

url

URL of the downloaded resource

post

HTTP POST parameters as a list

payload

HTTP data payload

Value

Object loaded from the cache RDS file.

See Also

omnipath_cache_save

Examples

url <- paste0(
    'https://omnipathdb.org/intercell?resources=Adhesome,Almen2009,',
    'Baccin2019,CSPA,CellChatDB&license=academic'
)
result <- read.delim(url, sep = '\t')
omnipath_cache_save(result, url = url)
# works only if you have already this item in the cache
intercell_data <- omnipath_cache_load(url = url)
class(intercell_data)
# [1] "data.frame"
nrow(intercell_data)
# [1] 16622
attr(intercell_data, 'origin')
# [1] "cache"

# basic example of saving and loading to and from the cache:
bioc_url <- 'https://bioconductor.org/'
bioc_html <- readChar(url(bioc_url), nchars = 99999)
omnipath_cache_save(bioc_html, url = bioc_url)
bioc_html <- omnipath_cache_load(url = bioc_url)

Moves an existing file into the cache

Description

Either the key or the URL (with POST and payload) must be provided.

Usage

omnipath_cache_move_in(
  path,
  key = NULL,
  version = NULL,
  url = NULL,
  post = NULL,
  payload = NULL,
  keep_original = FALSE
)

Arguments

path

Path to the source file

key

Key of the cache item

version

Version of the cache item. If does not exist a new version item will be created

url

URL of the downloaded resource

post

HTTP POST parameters as a list

payload

HTTP data payload

keep_original

Whether to keep or remove the original file

Value

Character: invisibly returns the version number of the cache version item.

See Also

omnipath_cache_save

Examples

path <- tempfile()
saveRDS(rnorm(100), file = path)
omnipath_cache_move_in(path, url = 'the_download_address')

# basic example of moving a file to the cache:

bioc_url <- 'https://bioconductor.org/'
html_file <- tempfile(fileext = '.html')
httr::GET(bioc_url, httr::write_disk(html_file, overwrite = TRUE))
omnipath_cache_move_in(path = html_file, url = bioc_url)
omnipath_cache_remove(url = bioc_url) # cleaning up

Removes contents from the cache directory

Description

According to the parameters, it can remove contents older than a certain age, or contents having a more recent version, one specific item, or wipe the entire cache.

Usage

omnipath_cache_remove(key = NULL, url = NULL, post = NULL,
    payload = NULL, max_age = NULL, min_age = NULL, status = NULL,
    only_latest = FALSE, wipe = FALSE, autoclean = TRUE)

Arguments

key

The key of the cache record

url

URL pointing to the resource

post

HTTP POST parameters as a list

payload

HTTP data payload

max_age

Age of cache items in days. Remove everything that is older than this age

min_age

Age of cache items in days. Remove everything more recent than this age

status

Remove items having any of the states listed here

only_latest

Keep only the latest version

wipe

Logical: if TRUE, removes all files from the cache and the cache database. Same as calling omnipath_cache_wipe.

autoclean

Remove the entries about failed downloads, the files in the cache directory which are missing from the cache database, and the entries without existing files in the cache directory

Value

Invisibly returns the cache database (list of cache records).

See Also

Examples

## Not run: 
# remove all cache data from the BioPlex database
cache_records <- omnipath_cache_search(
    'bioplex',
    ignore.case = TRUE
)
omnipath_cache_remove(names(cache_records))

# remove a record by its URL
regnetwork_url <- 'http://www.regnetworkweb.org/download/human.zip'
omnipath_cache_remove(url = regnetwork_url)

# remove all records older than 30 days
omnipath_cache_remove(max_age = 30)

# for each record, remove all versions except the latest
omnipath_cache_remove(only_latest = TRUE)

## End(Not run)

bioc_url <- 'https://bioconductor.org/'
version <- omnipath_cache_latest_or_new(url = bioc_url)
httr::GET(bioc_url, httr::write_disk(version$path, overwrite = TRUE))
omnipath_cache_download_ready(version)
key <- omnipath_cache_key(bioc_url)
omnipath_cache_remove(key = key)

Saves an R object to the cache

Description

Exports the object in RDS format, creates new cache record if necessary.

Usage

omnipath_cache_save(
  data,
  key = NULL,
  version = NULL,
  url = NULL,
  post = NULL,
  payload = NULL
)

Arguments

data

An object

key

Key of the cache item

version

Version of the cache item. If does not exist a new version item will be created

url

URL of the downloaded resource

post

HTTP POST parameters as a list

payload

HTTP data payload

Value

Returns invisibly the data itself.

Invisibly returns the 'data'.

See Also

omnipath_cache_move_in

Examples

mydata <- data.frame(a = c(1, 2, 3), b = c('a', 'b', 'c'))
omnipath_cache_save(mydata, url = 'some_dummy_address')
from_cache <- omnipath_cache_load(url = 'some_dummy_address')
from_cache
#   a b
# 1 1 a
# 2 2 b
# 3 3 c
attr(from_cache, 'origin')
# [1] "cache"

# basic example of saving and loading to and from the cache:
bioc_url <- 'https://bioconductor.org/'
bioc_html <- readChar(url(bioc_url), nchars = 99999)
omnipath_cache_save(bioc_html, url = bioc_url)
bioc_html <- omnipath_cache_load(url = bioc_url)

Sets the file extension for a cache record

Description

Sets the file extension for a cache record

Usage

omnipath_cache_set_ext(key, ext)

Arguments

key

Character: key for a cache item, alternatively a version entry.

ext

Character: the file extension, e.g. "zip".

Value

Returns 'NULL'.

Examples

bioc_url <- 'https://bioconductor.org/'
version <- omnipath_cache_latest_or_new(url = bioc_url)
version$path
# [1] "/home/denes/.cache/OmnipathR/41346a00fb20d2a9df03-1"
httr::GET(bioc_url, httr::write_disk(version$path, overwrite = TRUE))
key <- omnipath_cache_key(url = bioc_url)
omnipath_cache_set_ext(key = key, ext = 'html')
version <- omnipath_cache_latest_or_new(url = bioc_url)
version$path
# [1] "/home/denes/.cache/OmnipathR/41346a00fb20d2a9df03-1.html"
record <- omnipath_cache_get(url = bioc_url)
record$ext
# [1] "html"
omnipath_cache_remove(url = bioc_url) # cleaning up

Updates the status of an existing cache record

Description

Updates the status of an existing cache record

Usage

omnipath_cache_update_status(key, version, status,
    dl_finished = NULL)

Arguments

key

Key of the cache item

version

Version of the cache item. If does not exist a new version item will be created

status

The updated status value

dl_finished

Timestamp for the time when download was finished, if 'NULL' the value remains unchanged

Value

Character: invisibly returns the version number of the cache version item.

Examples

bioc_url <- 'https://bioconductor.org/'
latest_version <- omnipath_cache_latest_or_new(url = bioc_url)
key <- omnipath_cache_key(bioc_url)
omnipath_cache_update_status(
    key = key,
    version = latest_version$number,
    status = 'ready',
    dl_finished = Sys.time()
)
omnipath_cache_remove(url = bioc_url) # cleaning up

Permanently removes all the cache contents

Description

After this operation the cache directory will be completely empty, except an empty cache database file.

Usage

omnipath_cache_wipe(...)

Arguments

...

Ignored.

Value

Returns 'NULL'.

See Also

omnipath_cache_remove

Examples

## Not run: 
omnipath_cache_wipe()
# the cache is completely empty:
print(omnipathr.env$cache)
# list()
list.files(omnipath_get_cachedir())
# [1] "cache.json"

## End(Not run)

Current config file path of OmnipathR

Description

Current config file path of OmnipathR

Current config file path for a certain package

Usage

omnipath_config_path(user = FALSE)

config_path(user = FALSE, pkg = "OmnipathR")

Arguments

user

Logical: prioritize the user level config even if a config in the current working directory is available.

pkg

Character: name of the package.

Value

Character: path to the config file.

Examples

omnipath_config_path()

OmniPath PPI for the COSMOS PKN

Description

OmniPath PPI for the COSMOS PKN

Usage

omnipath_for_cosmos(
  organism = 9606L,
  resources = NULL,
  datasets = NULL,
  interaction_types = NULL,
  id_types = c("uniprot", "genesymbol"),
  ...
)

Arguments

organism

Character or integer: name or NCBI Taxonomy ID of the organism.

resources

Character: names of one or more resources. Correct spelling is important.

datasets

Character: one or more network datasets in OmniPath.

interaction_types

Character: one or more interaction type

id_types

Character: translate the protein identifiers to these ID types. Each ID type results two extra columns in the output, for the "source" and "target" sides of the interaction, respectively. The default ID type for proteins is Esembl Gene ID, and by default UniProt IDs and Gene Symbols are included. The UniProt IDs returned by the web service are left intact, while the Gene Symbols are queried from Ensembl. These Gene Symbols are different from the ones returned from the web service, and match the Ensembl Gene Symbols used by other components of the COSMOS PKN.

...

Further parameters to omnipath_interactions.

Value

Data frame with the columns source, target and sign.

See Also

Examples

op_cosmos <- omnipath_for_cosmos()
op_cosmos

Load the package configuration from a config file

Description

Load the package configuration from a config file

Load the coniguration of a certain package

Usage

omnipath_load_config(path = NULL, title = "default", user = FALSE, ...)

load_config(
  path = NULL,
  title = "default",
  user = FALSE,
  pkg = "OmnipathR",
  ...
)

Arguments

path

Path to the config file.

title

Load the config under this title. One config file might contain multple configurations, each identified by a title. If the title is not available the first section of the config file will be used.

user

Force to use the user level config even if a config file exists in the current directory. By default, the local config files have prioroty over the user level config.

...

Passed to yaml::yaml.load_file.

pkg

Character: name of the package

Value

Invisibly returns the config as a list.

Examples

## Not run: 
# load the config from a custom config file:
omnipath_load_config(path = 'my_custom_omnipath_config.yml')

## End(Not run)

Browse the current OmnipathR log file

Description

Browse the current OmnipathR log file

Browse the latest log from a package

Usage

omnipath_log()

read_log(pkg = "OmnipathR")

Arguments

pkg

Character: name of a package.

Value

Returns 'NULL'.

See Also

omnipath_logfile

Examples

## Not run: 
omnipath_log()
# then you can browse the log file, and exit with `q`

## End(Not run)

Path to the current OmnipathR log file

Description

Path to the current OmnipathR log file

Path to the current logfile of a package

Usage

omnipath_logfile()

logfile(pkg = "OmnipathR")

Arguments

pkg

Character: name of a package.

Value

Character: path to the current logfile, or NULL if no logfile is available.

See Also

omnipath_log

Examples

omnipath_logfile()
# [1] "/home/denes/omnipathr/omnipathr-log/omnipathr-20210309-1642.log"

Dispatch a message to the OmnipathR logger

Description

Any package or script can easily send log messages and establish a logging facility with the fantastic 'logger' package. This function serves the only purpose if you want to inject messages into the logger of OmnipathR. Otherwise we recommend to use the 'logger' package directly.

Usage

omnipath_msg(level, ...)

Arguments

level

Character, numeric or class loglevel. A log level, if character one of the followings: "fatal", "error", "warn", "success", "info", "trace".

...

Arguments for string formatting, passed sprintf or str_glue.

Value

Returns 'NULL'.

Examples

omnipath_msg(
    level = 'success',
    'Talking to you in the name of OmnipathR, my favourite number is %d',
    round(runif(1, 1, 10))
)

Download data from the OmniPath web service

Description

This is the most generic method for accessing data from the OmniPath web service. All other functions retrieving data from OmniPath call this function with various parameters. In general, every query can retrieve data in tabular or JSON format, the tabular (data frame) being the default.

Usage

omnipath_query(
  query_type,
  organism = 9606L,
  resources = NULL,
  datasets = NULL,
  types = NULL,
  genesymbols = "yes",
  fields = NULL,
  default_fields = TRUE,
  silent = FALSE,
  logicals = NULL,
  download_args = list(),
  format = "data.frame",
  references_by_resource = TRUE,
  add_counts = TRUE,
  license = NULL,
  password = NULL,
  exclude = NULL,
  json_param = list(),
  strict_evidences = FALSE,
  genesymbol_resource = "UniProt",
  cache = NULL,
  ...
)

Arguments

query_type

Character: "interactions", "enzsub", "complexes", "annotations", or "intercell".

organism

Character or integer: name or NCBI Taxonomy ID of the organism. OmniPath is built of human data, and the web service provides orthology translated interactions and enzyme-substrate relationships for mouse and rat. For other organisms and query types, orthology translation will be called automatically on the downloaded human data before returning the result.

resources

Character vector: name of one or more resources. Restrict the data to these resources. For a complete list of available resources, call the '<query_type>_resources' functions for the query type of interst.

datasets

Character vector: name of one or more datasets. In the interactions query type a number of datasets are available. The default is caled "omnipath", and corresponds to the curated causal signaling network published in the 2016 OmniPath paper.

types

Character vector: one or more interaction types, such as "transcriptional" or "post_translational". For a full list of interaction types see 'query_info("interaction")$types'.

genesymbols

Character or logical: TRUE or FALS or "yes" or "no". Include the 'genesymbols' column in the results. OmniPath uses UniProt IDs as the primary identifiers, gene symbols are optional.

fields

Character vector: additional fields to include in the result. For a list of available fields, call 'query_info("interactions")'.

default_fields

Logical: if TRUE, the default fields will be included.

silent

Logical: if TRUE, no messages will be printed. By default a summary message is printed upon successful download.

logicals

Character vector: fields to be cast to logical.

download_args

List: parameters to pass to the download function, which is 'readr::read_tsv' by default, and 'jsonlite::safe_load'.

format

Character: if "json", JSON will be retrieved and processed into a nested list; any other value will return data frame.

references_by_resource

Logical: if TRUE,, in the 'references' column the PubMed IDs will be prefixed with the names of the resources they are coming from. If FALSE, the 'references' column will be a list of unique PubMed IDs.

add_counts

Logical: if TRUE, the number of references and number of resources for each record will be added to the result.

license

Character: license restrictions. By default, data from resources allowing "academic" use is returned by OmniPath. If you use the data for work in a company, you can provide "commercial" or "for-profit", which will restrict the data to those records which are supported by resources that allow for-profit use.

password

Character: password for the OmniPath web service. You can provide a special password here which enables the use of 'license = "ignore"' option, completely bypassing the license filter.

exclude

Character vector: resource or dataset names to be excluded. The data will be filtered after download to remove records of the excluded datasets and resources.

json_param

List: parameters to pass to the 'jsonlite::fromJSON' when processing JSON columns embedded in the downloaded data. Such columns are "extra_attrs" and "evidences". These are optional columns which provide a lot of extra details about interactions.

strict_evidences

Logical: reconstruct the "sources" and "references" columns of interaction data frames based on the "evidences" column, strictly filtering them to the queried datasets and resources. Without this, the "sources" and "references" fields for each record might contain information for datasets and resources other than the queried ones, because the downloaded records are a result of a simple filtering of an already integrated data frame.

genesymbol_resource

Character: "uniprot" (default) or "ensembl". The OmniPath web service uses the primary gene symbols as provided by UniProt. By passing "ensembl" here, the UniProt gene symbols will be replaced by the ones used in Ensembl. This translation results in a loss of a few records, and multiplication of another few records due to ambiguous translation.

cache

Logical: use caching, load data from and save to the. The cache directory by default belongs to the user, located in the user's default cache directory, and named "OmnipathR". Find out about it by getOption("omnipathr.cachedir"). Can be changed by omnipath_set_cachedir.

...

Additional parameters for the OmniPath web service. These parameters will be processed, validated and included in the query string. Many parameters are already explicitly set by the arguments above. A number of query type specific parameters are also available, learn more about these by the query_info function. For functions more specific than omnipath_query, arguments for all downstream functions are also passed here.

Value

Data frame (tibble) or list: the data returned by the OmniPath web service (or loaded from cache), after processing. Nested list if the "format" parameter is "json", otherwise a tibble.

Examples

interaction_data <- omnipath_query("interaction", datasets = "omnipath")
interaction_data

Save the current package configuration

Description

Save the current package configuration

Save the configuration of a certain package

Usage

omnipath_save_config(path = NULL, title = "default", local = FALSE)

save_config(path = NULL, title = "default", local = FALSE, pkg = "OmnipathR")

Arguments

path

Path to the config file. Directories and the file will be created if don't exist.

title

Save the config under this title. One config file might contain multiple configurations, each identified by a title.

local

Save into a config file in the current directory instead of a user level config file. When loading, the config in the current directory has priority over the user level config.

pkg

Character: name of the package

Value

Returns 'NULL'.

Examples

## Not run: 
# after this, all downloads will default to commercial licenses
# i.e. the resources that allow only academic use will be excluded:
options(omnipathr.license = 'commercial')
omnipath_save_config()

## End(Not run)

Change the cache directory

Description

Change the cache directory

Usage

omnipath_set_cachedir(path = NULL)

Arguments

path

Character: path to the new cache directory. If don't exist, the directories will be created. If the path is an existing cache directory, the package's cache database for the current session will be loaded from the database in the directory. If NULL, the cache directory will be set to its default path.

Value

Returns NULL.

Examples

tmp_cache <- tempdir()
omnipath_set_cachedir(tmp_cache)
# restore the default cache directory:
omnipath_set_cachedir()

Sets the log level for the console

Description

Use this method to change during a session which messages you want to be printed on the console. Before loading the package, you can set it also by the config file, with the omnipathr.console_loglevel key.

Usage

omnipath_set_console_loglevel(level)

Arguments

level

Character or class 'loglevel'. The desired log level.

Value

Returns 'NULL'.

See Also

omnipath_set_logfile_loglevel

Examples

omnipath_set_console_loglevel('warn')
# or:
omnipath_set_console_loglevel(logger::WARN)

Sets the log level for the logfile

Description

Use this method to change during a session which messages you want to be written into the logfile. Before loading the package, you can set it also by the config file, with the "omnipathr.loglevel" key.

Usage

omnipath_set_logfile_loglevel(level)

Arguments

level

Character or class 'loglevel'. The desired log level.

Value

Returns 'NULL'.

See Also

omnipath_set_console_loglevel

Examples

omnipath_set_logfile_loglevel('info')
# or:
omnipath_set_logfile_loglevel(logger::INFO)

Sets the log level for the package logger

Description

Sets the log level for the package logger

Sets the log level for any package

Usage

omnipath_set_loglevel(level, target = "logfile")

set_loglevel(level, target = "logfile", pkg = "OmnipathR")

Arguments

level

Character or class 'loglevel'. The desired log level.

target

Character, either 'logfile' or 'console'

pkg

Character: name of the package.

Value

Returns 'NULL'.

Examples

omnipath_set_loglevel(logger::FATAL, target = 'console')

Built in database definitions

Description

Databases are resources which might be costly to load but can be used many times by functions which usually automatically load and retrieve them from the database manager. Each database has a lifetime and will be unloaded automatically upon expiry.

Usage

omnipath_show_db()

Value

A data frame with the built in database definitions.

Examples

database_definitions <- omnipath_show_db()
database_definitions
# # A tibble: 14 x 10
#    name       last_used           lifetime package  loader    loader_p.
#    <chr>      <dttm>                 <dbl> <chr>    <chr>     <list>
#  1 Gene Onto. 2021-04-04 20:19:15      300 Omnipat. go_ontol. <named l.
#  2 Gene Onto. NA                       300 Omnipat. go_ontol. <named l.
#  3 Gene Onto. NA                       300 Omnipat. go_ontol. <named l.
#  4 Gene Onto. NA                       300 Omnipat. go_ontol. <named l.
#  5 Gene Onto. NA                       300 Omnipat. go_ontol. <named l.
# ... (truncated)
# # . with 4 more variables: latest_param <list>, loaded <lgl>, db <list>,
# #   key <chr>

Removes the lock file from the cache directory

Description

A lock file in the cache directory avoids simulatneous write and read. It's supposed to be removed after each read and write operation. This might not happen if the process crashes during such an operation. In this case you can manually call this function.

Usage

omnipath_unlock_cache_db()

Value

Logical: returns TRUE if the cache was locked and now is unlocked; FALSE if it was not locked.

Examples

omnipath_unlock_cache_db()

Molecular interactions from OmniPath

Description

The functions listed here all download pairwise, causal molecular interactions from the https://omnipathdb.org/interactions endpoint of the OmniPath web service. They are different only in the type of interactions and the kind of resources and data they have been compiled from. A complete list of these functions is available below, these cover the interaction datasets and types currently available in OmniPath:

Interactions from the https://omnipathdb.org/interactions endpoint of the OmniPath web service. By default, it downloads only the "omnipath" dataset, which corresponds to the curated causal interactions described in Turei et al. 2016.

Imports interactions from the 'omnipath' dataset of OmniPath, a dataset that inherits most of its design and contents from the original OmniPath core from the 2016 publication. This dataset consists of about 40k interactions.

Imports the dataset from: https://omnipathdb.org/interactions?datasets=pathwayextra, which contains activity flow interactions without literature reference. The activity flow interactions supported by literature references are part of the 'omnipath' dataset.

Imports the dataset from: https://omnipathdb.org/interactions?datasets=kinaseextra, which contains enzyme-substrate interactions without literature reference. The enzyme-substrate interactions supported by literature references are part of the 'omnipath' dataset.

Imports the dataset from: https://omnipathdb.org/interactions?datasets=ligrecextra, which contains ligand-receptor interactions without literature reference. The ligand-receptor interactions supported by literature references are part of the 'omnipath' dataset.

Imports interactions from all post-translational datasets of OmniPath. The datasets are "omnipath", "kinaseextra", "pathwayextra" and "ligrecextra".

Imports the dataset from: https://omnipathdb.org/interactions?datasets=dorothea which contains transcription factor (TF)-target interactions from DoRothEA https://github.com/saezlab/DoRothEA DoRothEA is a comprehensive resource of transcriptional regulation, consisting of 16 original resources, in silico TFBS prediction, gene expression signatures and ChIP-Seq binding site analysis.

Imports the dataset from: https://omnipathdb.org/interactions?datasets=tf_target, which contains transcription factor-target protein coding gene interactions. Note: this is not the only TF-target dataset in OmniPath, 'dorothea' is the other one and the 'tf_mirna' dataset provides TF-miRNA gene interactions.

Imports the dataset from: https://omnipathdb.org/interactions?datasets=tf_target,dorothea, which contains transcription factor-target protein coding gene interactions.

CollecTRI is a comprehensive resource of transcriptional regulation, published in 2023, consisting of 14 resources and original literature curation.

Imports the dataset from: https://omnipathdb.org/interactions?datasets=mirnatarget, which contains miRNA-mRNA interactions.

Imports the dataset from: https://omnipathdb.org/interactions?datasets=tf_mirna, which contains transcription factor-miRNA gene interactions

Imports the dataset from: https://omnipathdb.org/interactions?datasets=lncrna_mrna, which contains lncRNA-mRNA interactions

Imports the dataset from: https://omnipathdb.org/interactions?datasets=small_molecule, which contains small molecule-protein interactions. Small molecules can be metabolites, intrinsic ligands or drug compounds.

Usage

omnipath_interactions(...)

omnipath(...)

pathwayextra(...)

kinaseextra(...)

ligrecextra(...)

post_translational(...)

dorothea(dorothea_levels = c("A", "B"), ...)

tf_target(...)

transcriptional(dorothea_levels = c("A", "B"), ...)

collectri(...)

mirna_target(...)

tf_mirna(...)

lncrna_mrna(...)

small_molecule(...)

all_interactions(
  dorothea_levels = c("A", "B"),
  types = NULL,
  fields = NULL,
  exclude = NULL,
  ...
)

Arguments

...

Arguments passed on to omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query, omnipath_query

organism

Character or integer: name or NCBI Taxonomy ID of the organism. OmniPath is built of human data, and the web service provides orthology translated interactions and enzyme-substrate relationships for mouse and rat. For other organisms and query types, orthology translation will be called automatically on the downloaded human data before returning the result.

resources

Character vector: name of one or more resources. Restrict the data to these resources. For a complete list of available resources, call the '<query_type>_resources' functions for the query type of interst.

datasets

Character vector: name of one or more datasets. In the interactions query type a number of datasets are available. The default is caled "omnipath", and corresponds to the curated causal signaling network published in the 2016 OmniPath paper.

genesymbols

Character or logical: TRUE or FALS or "yes" or "no". Include the 'genesymbols' column in the results. OmniPath uses UniProt IDs as the primary identifiers, gene symbols are optional.

default_fields

Logical: if TRUE, the default fields will be included.

silent

Logical: if TRUE, no messages will be printed. By default a summary message is printed upon successful download.

logicals

Character vector: fields to be cast to logical.

format

Character: if "json", JSON will be retrieved and processed into a nested list; any other value will return data frame.

download_args

List: parameters to pass to the download function, which is 'readr::read_tsv' by default, and 'jsonlite::safe_load'.

references_by_resource

Logical: if TRUE,, in the 'references' column the PubMed IDs will be prefixed with the names of the resources they are coming from. If FALSE, the 'references' column will be a list of unique PubMed IDs.

add_counts

Logical: if TRUE, the number of references and number of resources for each record will be added to the result.

license

Character: license restrictions. By default, data from resources allowing "academic" use is returned by OmniPath. If you use the data for work in a company, you can provide "commercial" or "for-profit", which will restrict the data to those records which are supported by resources that allow for-profit use.

password

Character: password for the OmniPath web service. You can provide a special password here which enables the use of 'license = "ignore"' option, completely bypassing the license filter.

json_param

List: parameters to pass to the 'jsonlite::fromJSON' when processing JSON columns embedded in the downloaded data. Such columns are "extra_attrs" and "evidences". These are optional columns which provide a lot of extra details about interactions.

strict_evidences

Logical: reconstruct the "sources" and "references" columns of interaction data frames based on the "evidences" column, strictly filtering them to the queried datasets and resources. Without this, the "sources" and "references" fields for each record might contain information for datasets and resources other than the queried ones, because the downloaded records are a result of a simple filtering of an already integrated data frame.

genesymbol_resource

Character: "uniprot" (default) or "ensembl". The OmniPath web service uses the primary gene symbols as provided by UniProt. By passing "ensembl" here, the UniProt gene symbols will be replaced by the ones used in Ensembl. This translation results in a loss of a few records, and multiplication of another few records due to ambiguous translation.

cache

Logical: use caching, load data from and save to the. The cache directory by default belongs to the user, located in the user's default cache directory, and named "OmnipathR". Find out about it by getOption("omnipathr.cachedir"). Can be changed by omnipath_set_cachedir.

dorothea_levels

The confidence levels of the dorothea interactions (TF-target) which range from A to D. Set to A and B by default.

types

Character: interaction types, such as "transcriptional", "post_transcriptional", "post_translational", etc.

fields

Character: additional fields (columns) to be included in the result. For a list of available fields, see query_info.

exclude

Character: names of datasets or resource to be excluded from the result. By deafult, the records supported by only these resources or datasets will be removed from the output. If strict_evidences = TRUE, the resource, reference and causality information in the data frame will be reconstructed to remove all information coming from the excluded resources.

Details

Post-translational (protein-protein, PPI) interactions

  • omnipath: the OmniPath data as defined in the 2016 paper, an arbitrary optimum between coverage and quality. This dataset contains almost entirely causal (stimulatory or inhibitory; i.e. activity flow , according to the SBGN standard), physical interactions between pairs of proteins, curated by experts from the literature.

  • pathwayextra: activity flow interactions without literature references.

  • kinaseextra: enzyme-substrate interactions without literature references.

  • ligrecextra: ligand-receptor interactions without literature references.

  • post_translational: all post-translational (protein-protein, PPI) interactions; this is the combination of the omnipath, pathwayextra, kinaseextra and ligrecextra datasets.

TF-target (gene regulatory, GRN) interactions

  • collectri: transcription factor (TF)-target interactions from CollecTRI.

  • dorothea: transcription factor (TF)-target interactions from DoRothEA

  • tf_target: transcription factor (TF)-target interactions from other resources

  • transcriptional: all transcription factor (TF)-target interactions; this is the combination of the collectri, dorothea and tf_target datasets.

Post-transcriptional (miRNA-target) and other RNA related interactions

In these datasets we intend to collect the literature curated resources, hence we don't include some of the most well known large databases if those are based on predictions or high-throughput assays.

  • mirna_target: miRNA-mRNA interactions

  • tf_mirna: TF-miRNA interactions

  • lncrna_mrna: lncRNA-mRNA interactions

Other interaction access functions

  • small_molecule: interactions between small molecules and proteins. Currently this is a small, experimental dataset that includes drug-target, ligand-receptor, enzyme-metabolite and other interactions. In the future this will be largely expanded and divided into multiple datasets.

  • all_interactions: all the interaction datasets combined.

Value

A dataframe of molecular interactions.

A dataframe of literature curated, post-translational signaling interactions.

A dataframe containing activity flow interactions between proteins without literature reference

A dataframe containing enzyme-substrate interactions without literature reference

A dataframe containing ligand-receptor interactions including the ones without literature references

A dataframe containing post-translational interactions

A data frame of TF-target interactions from DoRothEA.

A dataframe containing TF-target interactions

A dataframe containing TF-target interactions.

A dataframe of TF-target interactions.

A dataframe containing miRNA-mRNA interactions

A dataframe containing TF-miRNA interactions

A dataframe containing lncRNA-mRNA interactions

A dataframe of small molecule-protein interactions

A dataframe containing all the datasets in the interactions query

See Also

Examples

op <- omnipath(resources = c("CA1", "SIGNOR", "SignaLink3"))
op

interactions = omnipath_interactions(
    resources = "SignaLink3",
    organism = 9606
)

pathways <- omnipath()
pathways

interactions <-
    pathwayextra(
        resources = c("BioGRID", "IntAct"),
        organism = 9606
    )

kinase_substrate <-
   kinaseextra(
       resources = c('PhosphoPoint', 'PhosphoSite'),
       organism = 9606
   )

ligand_receptor <- ligrecextra(
    resources = c('HPRD', 'Guide2Pharma'),
    organism = 9606
)

interactions <- post_translational(resources = "BioGRID")

dorothea_grn <- dorothea(
    resources = c('DoRothEA', 'ARACNe-GTEx_DoRothEA'),
    organism = 9606,
    dorothea_levels = c('A', 'B', 'C')
)
dorothea_grn

interactions <- tf_target(resources = c("DoRothEA", "SIGNOR"))

grn <- transcriptional(resources = c("PAZAR", "ORegAnno", "DoRothEA"))
grn

collectri_grn <- collectri()
collectri_grn

interactions <- mirna_target( resources = c("miRTarBase", "miRecords"))

interactions <- tf_mirna(resources = "TransmiR")

interactions <- lncrna_mrna(resources = c("ncRDeathDB"))

# What are the targets of aspirin?
interactions <- small_molecule(sources = "ASPIRIN")
# The prostaglandin synthases:
interactions

interactions <- all_interactions(
    resources = c("HPRD", "BioGRID"),
    organism = 9606
)

The OmnipathR package

Description

OmnipathR is an R package built to provide easy access to the data stored in the OmniPath web service:

https://omnipathdb.org/

And a number of other resources, such as BioPlex, ConsensusPathDB, EVEX, Guide to Pharmacology (IUPHAR/BPS), Harmonizome, HTRIdb, InWeb InBioMap, KEGG Pathway, Pathway Commons, Ramilowski et al. 2015, RegNetwork, ReMap, TF census, TRRUST and Vinayagam et al. 2011.

The OmniPath web service implements a very simple REST style API. This package make requests by the HTTP protocol to retreive the data. Hence, fast Internet access is required for a propser use of OmnipathR.

The package also provides some utility functions to filter, analyse and visualize the data. Furthermore, OmnipathR features a close integration with the NicheNet method for ligand activity prediction from transcriptomics data, and its R implementation nichenetr (available in CRAN).

Author(s)

Alberto Valdeolivas <alvaldeolivas@gmail> and Denes Turei <[email protected]> and Attila Gabor <[email protected]>

See Also

Useful links:

Examples

## Not run: 
# Download post-translational modifications:
enzsub <- enzyme_substrate(resources = c("PhosphoSite", "SIGNOR"))

# Download protein-protein interactions
interactions <- omnipath(resources = "SignaLink3")

# Convert to igraph objects:
enzsub_g <- enzsub_graph(enzsub = enzsub)
OPI_g <- interaction_graph(interactions = interactions)

# Print some interactions:
print_interactions(head(enzsub))

# interactions with references:
print_interactions(tail(enzsub), writeRefs = TRUE)

# find interactions between kinase and substrate:
print_interactions(dplyr::filter(ptms,enzyme_genesymbol=="MAP2K1",
   substrate_genesymbol=="MAPK3"))

# find shortest paths on the directed network between proteins
print_path_es(shortest_paths(OPI_g, from = "TYRO3", to = "STAT3",
   output = 'epath')$epath[[1]], OPI_g)

# find all shortest paths between proteins
print_path_vs(
    all_shortest_paths(
        enzsub_g,
        from = "SRC",
        to = "STAT1"
    )$res,
    enzsub_g
)

## End(Not run)

Recreate interaction data frame based on certain datasets and resources

Description

Recreate interaction data frame based on certain datasets and resources

Usage

only_from(
  data,
  datasets = NULL,
  resources = NULL,
  exclude = NULL,
  .keep = FALSE
)

Arguments

data

An interaction data frame from the OmniPath web service with evidences column.

datasets

Character: a vector of dataset labels. Only evidences from these datasets will be used.

resources

Character: a vector of resource labels. Only evidences from these resources will be used.

exclude

Character vector of resource names to be excluded.

.keep

Logical: keep the "evidences" column.

Details

The OmniPath interactions database fully integrates all attributes from all resources for each interaction. This comes with the advantage that interaction data frames are ready for use in most of the applications; however, it makes it impossible to know which of the resources and references support the direction or effect sign of the interaction. This information can be recovered from the "evidences" column. The "evidences" column preserves all the details about interaction provenances. In cases when you want to use a faithful copy of a certain resource or dataset, this function will help you do so. Still, in most of the applications the best is to use the interaction data as it is returned by the web service.

Note: This function is automatically applied if the 'strict_evidences' argument is passed to any function querying interactions (e.g. omnipath-interactions).

Value

A copy of the interaction data frame restricted to the given datasets and resources.

See Also

Examples

## Not run: 
ci <- collectri(evidences = TRUE)
ci <- only_from(ci, datasets = 'collectri')

## End(Not run)

Only ontology IDs

Description

Converts a mixture of ontology IDs and names to only IDs. If an element of the input is missing from the chosen ontology it will be dropped. This can happen if the ontology is a subset (slim) version, but also if the input is not a valid ID or name.

Usage

ontology_ensure_id(terms, db_key = "go_basic")

Arguments

terms

Character: ontology IDs or term names.

db_key

Character: key to identify the ontology database. For the available keys see omnipath_show_db.

Value

Character vector of ontology IDs.

Examples

ontology_ensure_id(c('mitochondrion inheritance', 'GO:0001754'))
# [1] "GO:0000001" "GO:0001754"

Only ontology term names

Description

Converts a mixture of ontology IDs and names to only names. If an element of the input is missing from the chosen ontology it will be dropped. This can happen if the ontology is a subset (slim) version, but also if the input is not a valid ID or name.

Usage

ontology_ensure_name(terms, db_key = "go_basic")

Arguments

terms

Character: ontology IDs or term names.

db_key

Character: key to identify the ontology database. For the available keys see omnipath_show_db.

Value

Character vector of ontology term names.

Examples

ontology_ensure_name(c('reproduction', 'GO:0001754', 'foo bar'))
# [1] "eye photoreceptor cell differentiation" "reproduction"

Translate between ontology IDs and names

Description

Makes sure that the output contains only valid IDs or term names. The input can be a mixture of IDs and names. The order of the input won't be preserved in the output.

Usage

ontology_name_id(terms, ids = TRUE, db_key = "go_basic")

Arguments

terms

Character: ontology IDs or term names.

ids

Logical: the output should contain IDs or term names.

db_key

Character: key to identify the ontology database. For the available keys see omnipath_show_db.

Value

Character vector of ontology IDs or term names.

Examples

ontology_name_id(c('mitochondrion inheritance', 'reproduction'))
# [1] "GO:0000001" "GO:0000003"
ontology_name_id(c('GO:0000001', 'reproduction'), ids = FALSE)
# [1] "mitochondrion inheritance" "reproduction"

Make sure the resource supports the organism and it has the ID

Description

Make sure the resource supports the organism and it has the ID

Usage

organism_for(organism, resource, error = TRUE)

Arguments

organism

Character or integer: name or NCBI Taxonomy ID of the organism.

resource

Charater: name of the resource.

error

Logical: raise an error if the organism is not supported in the resource. Otherwise it only emits a warning.

Value

Character: the ID of the organism as it is used by the resource. NA if the organism can not be translated to the required identifier type.

Examples

organism_for(10116, 'chalmers-gem')
# [1] "Rat"
organism_for(6239, 'chalmers-gem')
# [1] "Worm"
# organism_for('foobar', 'chalmers-gem')
# Error in organism_for("foobar", "chalmers-gem") :
# Organism `foobar` (common_name: `NA`; common_name: `NA`)
# is not supported by resource `chalmers-gem`. Supported organisms:
# Human, Mouse, Rat, Zebrafish, Drosophila melanogaster (Fruit fly),
# Caenorhabditis elegans (PRJNA13758).

Translate a column of identifiers by orthologous gene pairs

Description

Translate a column of identifiers by orthologous gene pairs

Usage

orthology_translate_column(
  data,
  column,
  id_type = NULL,
  target_organism = "mouse",
  source_organism = "human",
  resource = "oma",
  replace = FALSE,
  one_to_many = NULL,
  keep_untranslated = FALSE,
  translate_complexes = FALSE,
  uniprot_by_id_type = "entrez"
)

Arguments

data

A data frame with the column to be translated.

column

Name of a character column with identifiers of the source organism of type 'id_type'.

id_type

Type of identifiers in 'column'. Available ID types include "uniprot", "entrez", "ensg", "refseq" and "swissprot" for OMA, and "uniprot", "entrez", "genesymbol", "refseq" and "gi" for NCBI HomoloGene. If you want to translate an ID type not directly available in your preferred resource, use first translate_ids to translate to an ID type directly available in the orthology resource. If not provided, it is assumed the column name is the ID type.

target_organism

Name or NCBI Taxonomy ID of the target organism.

source_organism

Name or NCBI Taxonomy ID of the source organism.

resource

Character: source of the orthology mapping. Currently Orthologous Matrix (OMA) and NCBI HomoloGene are available, refer to them by "oma" and "homologene", respectively.

replace

Logical or character: replace the column with the translated identifiers, or create a new column. If it is character, it will be used as the name of the new column.

one_to_many

Integer: maximum number of orthologous pairs for one gene of the source organism. Genes mapping to higher number of orthologues will be dropped.

keep_untranslated

Logical: keep records without orthologous pairs. If 'replace' is TRUE, this option is ignored, and untranslated records will be dropped. Genes with more than 'one_to_many' orthologues will always be dropped.

translate_complexes

Logical: translate the complexes by translating their components.

uniprot_by_id_type

Character: translate NCBI HomoloGene to UniProt by this ID type. One of "genesymbol", "entrez", "refseq" or "gi".

Value

The data frame with identifiers translated to other organism.


Interactions from PathwayCommons

Description

PathwayCommons (http://www.pathwaycommons.org/) provides molecular interactions from a number of databases, in either BioPAX or SIF (simple interaction format). This function retrieves all interactions in SIF format. The data is limited to the interacting pair and the type of the interaction.

Usage

pathwaycommons_download()

Value

A data frame (tibble) with interactions.

Examples

pc_interactions <- pathwaycommons_download()
 pc_interactions
# # A tibble: 1,884,849 x 3
#    from  type                        to
#    <chr> <chr>                       <chr>
#  1 A1BG  controls-expression-of      A2M
#  2 A1BG  interacts-with              ABCC6
#  3 A1BG  interacts-with              ACE2
#  4 A1BG  interacts-with              ADAM10
#  5 A1BG  interacts-with              ADAM17
# # . with 1,884,839 more rows

Converts annotation tables to a wide format

Description

Use this method to reconstitute the annotation tables into the format of the original resources. With the 'wide=TRUE' option annotations applies this function to the downloaded data.

Usage

pivot_annotations(annotations)

Arguments

annotations

A data frame of annotations downloaded from the OmniPath web service by annotations.

Value

A wide format data frame (tibble) if the provided data contains annotations from one resource, otherwise a list of wide format tibbles.

See Also

annotations

Examples

# single resource: the result is a data frame
disgenet <- annotations(resources = "DisGeNet")
disgenet <- pivot_annotations(disgenet)
disgenet
# # A tibble: 126,588 × 11
#    uniprot genesymbol entity_type disease      type  score   dsi   dpi
#    <chr>   <chr>      <chr>       <chr>        <chr> <dbl> <dbl> <dbl>
#  1 P04217  A1BG       protein     Schizophren. dise.  0.3  0.7   0.538
#  2 P04217  A1BG       protein     Hepatomegaly phen.  0.3  0.7   0.538
#  3 P01023  A2M        protein     Fibrosis, L. dise.  0.3  0.529 0.769
#  4 P01023  A2M        protein     Acute kidne. dise.  0.3  0.529 0.769
#  5 P01023  A2M        protein     Mental Depr. dise.  0.3  0.529 0.769
# # . with 126,583 more rows, and 3 more variables: nof_pmids <dbl>,
# #   nof_snps <dbl>, source <chr>

# multiple resources: the result is a list
annot_long <- annotations(
    resources = c("DisGeNet", "SignaLink_function", "DGIdb", "kinase.com")
)
annot_wide <- pivot_annotations(annot_long)
names(annot_wide)
# [1] "DGIdb"              "DisGeNet"           "kinase.com"
# [4] "SignaLink_function"
annot_wide$kinase.com
# # A tibble: 825 x 6
#    uniprot genesymbol entity_type group family subfamily
#    <chr>   <chr>      <chr>       <chr> <chr>  <chr>
#  1 P31749  AKT1       protein     AGC   Akt    NA
#  2 P31751  AKT2       protein     AGC   Akt    NA
#  3 Q9Y243  AKT3       protein     AGC   Akt    NA
#  4 O14578  CIT        protein     AGC   DMPK   CRIK
#  5 Q09013  DMPK       protein     AGC   DMPK   GEK
# # . with 815 more rows

Interactions from PrePPI

Description

Retrieves predicted protein-protein interactions from the PrePPI database (http://honig.c2b2.columbia.edu/preppi). The interactions in this table are supposed to be correct with a > 0.5 probability.

Usage

preppi_download(...)

Arguments

...

Minimum values for the scores. The available scores are: str, protpep, str_max, red, ort, phy, coexp, go, total, exp and final. Furthermore, an operator can be passed, either .op = '&' or .op = '|', which is then used for combined filtering by multiple scores.

Details

PrePPI is a combination of many prediction methods, each resulting a score. For an explanation of the scores see https://honiglab.c2b2.columbia.edu/hfpd/help/Manual.html. The minimum, median and maximum values of the scores:

| Score   | Minimum | Median   | Maximum            |
| ------- | ------- | -------- | ------------------ |
| str     |       0 |     5.5  |           6,495    |
| protpep |       0 |     3.53 |          38,138    |
| str_max |       0 |    17.9  |          38,138    |
| red     |       0 |     1.25 |              24.4  |
| ort     |       0 |     0    |           5,000    |
| phy     |       0 |     2.42 |               2.42 |
| coexp   |       0 |     2.77 |              45.3  |
| go      |       0 |     5.86 |             181    |
| total   |       0 | 1,292    | 106,197,000,000    |
| exp     |       1 |   958    |           4,626    |
| final   |     600 | 1,778    |            4.91e14 |

Value

A data frame (tibble) of interactions with scores, databases and literature references.

See Also

preppi_filter

Examples

preppi <- preppi_download()
preppi
# # A tibble: 1,545,710 x 15
#    prot1 prot2 str_score protpep_score str_max_score red_score ort_score
#    <chr> <chr>     <dbl>         <dbl>         <dbl>     <dbl>     <dbl>
#  1 Q131. P146.     18.6           6.45         18.6      4.25      0.615
#  2 P064. Q96N.      1.83         14.3          14.3      4.25      0
#  3 Q7Z6. Q8NC.      4.57          0             4.57     0         0
#  4 P370. P154.    485.            0           485.       1.77      0.615
#  5 O004. Q9NR.     34.0           0            34.0      0.512     0
# # . with 1,545,700 more rows, and 8 more variables: phy_score <dbl>,
# #   coexp_score <dbl>, go_score <dbl>, total_score <dbl>, dbs <chr>,
# #   pubs <chr>, exp_score <dbl>, final_score <dbl>

Filter PrePPI interactions by scores

Description

Filter PrePPI interactions by scores

Usage

preppi_filter(data, ..., .op = "&")

Arguments

data

A data frame of PrePPI interactions as provided by preppi_download.

...

Minimum values for the scores. The available scores are: str, protpep, str_max, red, ort, phy, coexp, go, total, exp and final. See more about the scores at preppi_download.

.op

The operator to combine the scores with: either '&' or '|'. With the former, only records where all scores are above the threshold will be kept; with the latter, records where at least one score is above its threshold will be kept.

Value

The input data frame (tibble) filtered by the score thresholds.

See Also

preppi_download

Examples

preppi <- preppi_download()
preppi_filtered <- preppi_filter(preppi, red = 10, str = 4.5, ort = 1)
nrow(preppi_filtered)
# [1] 8443

Open one or more PubMed articles

Description

Open one or more PubMed articles

Usage

pubmed_open(pmids, browser = NULL, sep = ";", max_pages = 25L)

Arguments

pmids

Character or numberic vector of one or more PubMed IDs.

browser

Character: name of the web browser executable. If 'NULL', the default web browser will be used.

sep

Character: split the PubMed IDs by this separator.

max_pages

Numeric: largest number of pages to open. This is to prevent opening hundreds or thousands of pages at once.

Value

Returns 'NULL'.

Examples

interactions <- omnipath()
pubmed_open(interactions$references[1])

OmniPath query parameters

Description

All parameter names and their possible values for a query type. Note: parameters with 'NULL' values have too many possible values to list them.

Usage

query_info(query_type)

Arguments

query_type

Character: interactions, annotations, complexes, enz_sub or intercell.

Value

A named list with the parameter names and their possible values.

Examples

ia_param <- query_info('interactions')
ia_param$datasets[1:5]
# [1] "dorothea"    "kinaseextra" "ligrecextra" "lncrna_mrna" "mirnatarget"

Downloads ligand-receptor interactions from Ramilowski et al. 2015

Description

Curated ligand-receptor pairs from Supplementary Table 2 of the article "A draft network of ligand-receptor mediated multicellular signaling in human" (https://www.nature.com/articles/ncomms8866).

Usage

ramilowski_download()

Value

A data frame (tibble) with interactions.

Examples

rami_interactions <- ramilowski_download()
rami_interactions
# # A tibble: 2,557 x 16
#    Pair.Name Ligand.Approved. Ligand.Name Receptor.Approv.
#    <chr>     <chr>            <chr>       <chr>
#  1 A2M_LRP1  A2M              alpha-2-ma. LRP1
#  2 AANAT_MT. AANAT            aralkylami. MTNR1A
#  3 AANAT_MT. AANAT            aralkylami. MTNR1B
#  4 ACE_AGTR2 ACE              angiotensi. AGTR2
#  5 ACE_BDKR. ACE              angiotensi. BDKRB2
# # . with 2,547 more rows, and 12 more variables: Receptor.Name <chr>,
# #   DLRP <chr>, HPMR <chr>, IUPHAR <chr>, HPRD <chr>,
# #   STRING.binding <chr>, STRING.experiment <chr>, HPMR.Ligand <chr>,
# #   HPMR.Receptor <chr>, PMID.Manual <chr>, Pair.Source <chr>,
# #   Pair.Evidence <chr>

Pairwise ID translation table from RaMP database

Description

Pairwise ID translation table from RaMP database

Usage

ramp_id_mapping_table(from, to, version = "2.5.4")

Arguments

from

Character or Symbol. Name of an identifier type.

to

Character or Symbol. Name of an identifier type.

version

Character. The version of RaMP to download.

Value

Dataframe of pairs of identifiers.

See Also

Examples

ramp_id_mapping_table('hmdb', 'kegg')

RaMP identifier type label

Description

RaMP identifier type label

Usage

ramp_id_type(label)

Arguments

label

Character: an ID type label, as shown in the table returned by id_types

Value

Character: the RaMP specific ID type label, or the input unchanged if it could not be translated (still might be a valid identifier name). These labels should be valid value names, as used in RaMP SQL database.

See Also

Examples

ramp_id_type("rhea")
# [1] "rhea-comp"

Download and open RaMP database SQLite

Description

Download and open RaMP database SQLite

Usage

ramp_sqlite(version = "2.5.4")

Arguments

version

Character. The version of RaMP to download.

Value

SQLite connection.

See Also

Examples

sqlite_con <- ramp_sqlite()

Return table from RaMP database

Description

Return table from RaMP database

Usage

ramp_table(name, version = "2.5.4")

Arguments

name

Character. The name of the RaMP table to fetch.

version

Character. The version of RaMP to download.

Value

Character vector of table names in the RaMP SQLite database.

See Also

Examples

ramp_table('source')

List tables in RaMP database

Description

List tables in RaMP database

Usage

ramp_tables(version = "2.5.4")

Arguments

version

Character. The version of RaMP to download.

Value

Character vector of table names in the RaMP SQLite database.

See Also

Examples

ramp_tables()

Transcription factor effects from RegNetwork

Description

Transcription factor effects from RegNetwork

Usage

regnetwork_directions(organism = "human")

Arguments

organism

Character: either human or mouse.

Value

A data frame (tibble) of TF-target interactions with effect signs.

Examples

regn_dir <- regnetwork_directions()
regn_dir
# # A tibble: 3,954 x 5
#    source_genesymb. source_entrez target_genesymb. target_entrez
#    <chr>            <chr>         <chr>            <chr>
#  1 AHR              196           CDKN1B           1027
#  2 APLNR            187           PIK3C3           5289
#  3 APLNR            187           PIK3R4           30849
#  4 AR               367           KLK3             354
#  5 ARNT             405           ALDOA            226
# # . with 3,944 more rows, and 1 more variable: effect <dbl>

Interactions from RegNetwork

Description

Downloads transcriptional and post-transcriptional regulatory interactions from the RegNetwork database (http://www.regnetworkweb.org/). The information about effect signs (stimulation or inhibition), provided by regnetwork_directions are included in the result.

Usage

regnetwork_download(organism = "human")

Arguments

organism

Character: either human or mouse.

Value

Data frame with interactions.

Examples

regn_interactions <- regnetwork_download()
regn_interactions
# # A tibble: 372,778 x 7
#    source_genesymb. source_entrez target_genesymb. target_entrez
#    <chr>            <chr>         <chr>            <chr>
#  1 USF1             7391          S100A6           6277
#  2 USF1             7391          DUSP1            1843
#  3 USF1             7391          C4A              720
#  4 USF1             7391          ABCA1            19
#  5 TP53             7157          TP73             7161
# # . with 372,768 more rows, and 3 more variables: effect <dbl>,
# #   source_type <chr>, target_type <chr>

Table from a nested list of ontology relations

Description

Converting the nested list to a table is a more costly operation, it takes a few seconds. Best to do it only once, or pass tables = TRUE to obo_parser, and convert the data frame to list, if you also need it in list format.

Usage

relations_list_to_table(relations, direction = NULL)

Arguments

relations

A nested list of ontology relations (the "relations" element of the list returned by obo_parser in case its argument 'tables' is FALSE).

direction

Override the direction (i.e. child -> parents or parent -> children). The nested lists produced by functions in the current package add an attribute "direction" thus no need to pass this value. If the attribute and the argument are both missing, the column will be named simply "side2" and it won't be clear whether the relations point from "term" to "side2" or the other way around. The direction should be a character vector of length 2 with the values "parents" and "children".

Value

The relations converted to a data frame (tibble).

See Also

Examples

goslim_url <-
    "http://current.geneontology.org/ontology/subsets/goslim_generic.obo"
path <- tempfile()
httr::GET(goslim_url, httr::write_disk(path, overwrite = TRUE))
obo <- obo_parser(path, tables = FALSE)
unlink(path)
rel_tbl <- relations_list_to_table(obo$relations)

Graph from a table of ontology relations

Description

Graph from a table of ontology relations

Usage

relations_table_to_graph(relations)

Arguments

relations

A data frame of ontology relations (the "relations" element of the list returned by obo_parser in case its argument 'tables' is TRUE).

Details

By default the relations point from child to parents, the edges in the graph will be of the same direction. Use swap_relations on the data frame to reverse the direction.

Value

The relations converted to an igraph graph object.

Examples

## Not run: 
go <- get_db('go_basic')
go_graph <- relations_table_to_graph(go$relations)

## End(Not run)

Nested list from a table of ontology relations

Description

Nested list from a table of ontology relations

Usage

relations_table_to_list(relations)

Arguments

relations

A data frame of ontology relations (the "relations" element of the list returned by obo_parser in case its argument 'tables' is TRUE).

Value

The relations converted to a nested list.

See Also

Examples

goslim_url <-
    "http://current.geneontology.org/ontology/subsets/goslim_generic.obo"
path <- tempfile()
httr::GET(goslim_url, httr::write_disk(path, overwrite = TRUE))
obo <- obo_parser(path, tables = TRUE)
unlink(path)
rel_list <- relations_table_to_list(obo$relations)

Downloads TF-target interactions from ReMap

Description

ReMap (http://remap.univ-amu.fr/) is a database of ChIP-Seq experiments. It provides raw and merged peaks and CRMs (cis regulatory motifs) with their associations to regulators (TFs). TF-target relationships can be derived as it is written in Garcia-Alonso et al. 2019: "For ChIP-seq, we downloaded the binding peaks from ReMap and scored the interactions between each TF and each gene according to the distance between the TFBSs and the genes’ transcription start sites. We evaluated different filtering strategies that consisted of selecting only the top-scoring 100, 200, 500, and 1000 target genes for each TF." (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6673718/#s1title). This function returns the top TF-target relationships as used in DoRothEA: https://github.com/saezlab/dorothea/blob/master/inst/scripts/02_chip_seq.R).

Usage

remap_dorothea_download()

Value

Data frame with TF-target relationships.

See Also

remap_tf_target_download

Examples

remap_interactions <- remap_dorothea_download()
remap_interactions
# # A tibble: 136,988 x 2
#    tf    target
#    <chr> <chr>
#  1 ADNP  ABCC1
#  2 ADNP  ABCC6
#  3 ADNP  ABHD5
#  4 ADNP  ABT1
#  5 ADNP  AC002066.1
# # . with 136,978 more rows

Downloads TF-target interactions from ReMap

Description

Downloads the ReMap TF-target interactions as processed by Garcia-Alonso et al. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6673718/#s1title) and filters them based on a score threshold, the top targets and whether the TF is included in the TF census (Vaquerizas et al. 2009). The code for filtering is adapted from DoRothEA, written by Christian Holland.

Usage

remap_filtered(score = 100, top_targets = 500, only_known_tfs = TRUE)

Arguments

score

Numeric: a minimum score between 0 and 1000, records with lower scores will be excluded. If NULL no filtering performed.

top_targets

Numeric: the number of top scoring targets for each TF. Essentially the maximum number of targets per TF. If NULL the number of targets is not restricted.

only_known_tfs

Logical: whether to exclude TFs which are not in TF census.

Value

Data frame with TF-target relationships.

See Also

Examples

## Not run: 
remap_interactions <- remap_filtered()
nrow(remap_interactions)
# [1] 145680

remap_interactions <- remap_filtered(top_targets = 100)
remap_interactions
# # A tibble: 30,330 x 2
#    source_genesymbol target_genesymbol
#    <chr>             <chr>
#  1 ADNP              ABCC1
#  2 ADNP              ABT1
#  3 ADNP              AC006076.1
#  4 ADNP              AC007792.1
#  5 ADNP              AC011288.2
# # . with 30,320 more rows

## End(Not run)

Downloads TF-target interactions from ReMap

Description

ReMap (http://remap.univ-amu.fr/) is a database of ChIP-Seq experiments. It provides raw and merged peaks and CRMs (cis regulatory motifs) with their associations to regulators (TFs). TF-target relationships can be derived as it is written in Garcia-Alonso et al. 2019: "For ChIP-seq, we downloaded the binding peaks from ReMap and scored the interactions between each TF and each gene according to the distance between the TFBSs and the genes’ transcription start sites. We evaluated different filtering strategies that consisted of selecting only the top-scoring 100, 200, 500, and 1000 target genes for each TF." (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6673718/#s1title). This function retrieves the full processed TF-target list from the data deposited in https://zenodo.org/record/3713238.

Usage

remap_tf_target_download()

Value

Data frame with TF-target relationships.

See Also

Examples

## Not run: 
remap_interactions <- remap_tf_target_download()
remap_interactions
# # A tibble: 9,546,470 x 4
#    source_genesymbol target_genesymbol target_ensembl     score
#    <chr>             <chr>             <chr>              <dbl>
#  1 ADNP              PTPRS             ENSG00000105426.16  1000
#  2 AFF4              PRKCH             ENSG00000027075.14  1000
#  3 AHR               CTNND2            ENSG00000169862.18  1000
#  4 AR                PDE4D             ENSG00000113448.18  1000
#  5 ARID1A            PLEC              ENSG00000178209.14  1000
# # . with 9,546,460 more rows

## End(Not run)

Restore the built-in default values of all config parameters of a package

Description

Restore the built-in default values of all config parameters of a package

Restore the built-in default values of all config parameters of OmnipathR

Usage

reset_config(save = NULL, reset_all = FALSE, pkg = "OmnipathR")

omnipath_reset_config(...)

Arguments

save

If a path, the restored config will be also saved to this file. If TRUE, the config will be saved to the current default config path (see omnipath_config_path).

reset_all

Reset to their defaults also the options already set in the R options.

pkg

Character: name of a package

...

Ignored.

Value

The config as a list.

See Also

omnipath_load_config, omnipath_save_config

Examples

## Not run: 
# restore the defaults and write them to the default config file:
omnipath_reset_config()
omnipath_save_config()

## End(Not run)

OmniPath resource information

Description

The 'resources' query type provides resource metadata in JSON format. Here we retrieve this JSON and return it as a nested list structure.

Usage

resource_info()

Value

A nested list structure with resource metadata.

Examples

resource_info()

Retrieve the available resources for a given query type

Description

Collects the names of the resources available in OmniPath for a certain query type and optionally for a dataset within that.

Usage

resources(query_type, datasets = NULL, generic_categories = NULL)

Arguments

query_type

one of the query types 'interactions', 'enz_sub', 'complexes', 'annotations' or 'intercell'

datasets

currently within the 'interactions' query type only, multiple datasets are available: 'omnipath', 'kinaseextra', 'pathwayextra', 'ligrecextra', 'dorothea', 'tf_target', 'tf_mirna', 'mirnatarget' and 'lncrna_mrna'.

generic_categories

for the 'intercell' query type, restrict the search for some generic categories e.g. 'ligand' or 'receptor'.

Value

a character vector with resource names

Examples

resources(query_type = "interactions")

Name of the column with the resources

Description

Unfortunately the column title is different across the various query types in the OmniPath web service, so we need to guess.

Usage

resources_colname(data)

Arguments

data

A data frame downloaded by any import_... function in the current package.

Value

Character: the name of the column, if any of the column names matches.

Examples

co <- complexes()
resources_colname(co)
# [1] "sources"

Collect resource names from a data frame

Description

Collect resource names from a data frame

Usage

resources_in(data)

Arguments

data

A data frame from an OmniPath query.

Value

Character: resource names occuring in the data frame.

Examples

pathways <- omnipath_interactions()
resources_in(pathways)

Visualize node neighborhood with SigmaJS

Description

This function takes an OmniPath interaction data frame as input and returns a sigmaJS object for the subgraph formed by the neighbors of a node of interest.

Usage

show_network(interactions, node = NULL)

Arguments

interactions

An OmniPath interaction data frame.

node

The node of interest.

Value

A sigmaJS object, check http://sigmajs.john-coene.com/index.html for further details and customization options.

Examples

## Not run: 
# get interactions from omnipath
interactions <- omnipath()
# create and plot the network containing ATM neighbors
viz_sigmajs_neighborhood(interactions_df = interactions, int_node = "ATM")

## End(Not run)

Causal effect enzyme-PTM interactions

Description

Enzyme-substrate data does not contain sign (activation/inhibition), we generate this information based on the interaction network.

Usage

signed_ptms(
  enzsub = enzyme_substrate(),
  interactions = omnipath_interactions()
)

Arguments

enzsub

Enzyme-substrate data frame generated by enzyme_substrate

interactions

interaction data frame generated by an OmniPath interactions query: omnipath-interactions

Value

Data frame of enzyme-substrate relationships with is_inhibition and is_stimulation columns.

See Also

Examples

enzsub <- enzyme_substrate(resources = c("PhosphoSite", "SIGNOR"))
interactions <- omnipath_interactions()
enzsub <- signed_ptms(enzsub, interactions)

Simplify an intercell network

Description

The intercellular communication network data frames, created by intercell_network, are combinations of a network data frame with two copies of the intercell annotation data frames, all of them already having quite some columns. Here we keep only the names of the interacting pair, their intercellular communication roles, and the minimal information of the origin of both the interaction and the annotations. Optionally further columns can be selected.

Usage

simplify_intercell_network(network, ...)

Arguments

network

An intercell network data frame, as provided by intercell_network.

...

Optional, further columns to select.

Value

An intercell network data frame with some columns removed.

See Also

Examples

icn <- intercell_network()
icn_s <- simplify_intercell_network(icn)

Retrieve a static table from OmniPath

Description

A few resources and datasets are available also as plain TSV files and can be accessed without TLS. The purpose of these tables is to make the most often used OmniPath data available on computers with configuration issues. These tables are not the recommended way to access OmniPath data, and a warning is issued each time they are accessed.

Usage

static_table(
  query,
  resource,
  organism = 9606L,
  strict_evidences = TRUE,
  wide = TRUE,
  dorothea_levels = c("A", "B", "C")
)

Arguments

query

Character: a query type such as "annotations" or "interactions".

resource

Character: name of the resource or dataset, such as "CollecTRI" or "PROGENy".

organism

Integer: NCBI Taxonomy of the organism: 9606 for human, 10090 for mouse and 10116 for rat.

strict_evidences

Logical: restrict the evidences to the queried datasets and resources. If set to FALSE, the directions and effect signs and references might be based on other datasets and resources.

wide

Convert the annotation table to wide format, which corresponds more or less to the original resource. If the data comes from more than one resource a list of wide tables will be returned. See examples at pivot_annotations.

dorothea_levels

Vector detailing the confidence levels of the interactions to be downloaded. In dorothea, every TF-target interaction has a confidence score ranging from A to E, being A the most reliable interactions. By default here we take A, B and C level interactions (c("A", "B", "C")). It is to note that E interactions are not available in OmnipathR.

Value

A data frame (tibble) with the requested resource.

See Also

static_tables

Examples

static_table("annotations", "PROGENy")

List the static tables available from OmniPath

Description

A few resources and datasets are available also as plain TSV files and can be accessed without TLS. The purpose of these tables is to make the most often used OmniPath data available on computers with configuration issues. These tables are not the recommended way to access OmniPath data, and a warning is issued each time they are accessed.

Usage

static_tables()

Value

A data frame listing the available tables.

See Also

static_table

Examples

static_tables()

Retrieve the STITCH actions dataset

Description

Retrieve the STITCH actions dataset

Usage

stitch_actions(organism = "human", prefixes = FALSE)

Arguments

organism

Character or integer: name or NCBI Taxonomy ID of an organism. STITCH supports many organisms, please refer to their web site at https://stitch.embl.de/.

prefixes

Logical: include the prefixes in front of identifiers.

Value

Data frame of STITCH actions.

See Also

Examples

sta <- stitch_actions(organism = 'mouse')

Chemical-protein interactions from STITCH

Description

Chemical-protein interactions from STITCH

Usage

stitch_network(
  organism = "human",
  min_score = 700L,
  protein_ids = c("uniprot", "genesymbol"),
  metabolite_ids = c("hmdb", "kegg"),
  cosmos = FALSE
)

Arguments

organism

Character or integer: name or NCBI Taxonomy ID of an organism. STITCH supports many organisms, please refer to their web site at https://stitch.embl.de/.

min_score

Confidence cutoff used for STITCH connections (700 by default).

protein_ids

Character: translate the protein identifiers to these ID types. Each ID type results two extra columns in the output, for the "a" and "b" sides of the interaction, respectively. The default ID type for proteins is Esembl Protein ID, and by default UniProt IDs and Gene Symbols are included.

metabolite_ids

Character: translate the protein identifiers to these ID types. Each ID type results two extra columns in the output, for the "a" and "b" sides of the interaction, respectively. The default ID type for metabolites is PubChem CID, and HMDB IDs and KEGG IDs are included.

cosmos

Logical: use COSMOS format?

Value

A data frame of STITCH chemical-protein and protein-chemical interactions with their effect signs, and optionally with identifiers translated.

See Also

Examples

stn <- stitch_network(protein_ids = 'genesymbol', metabolite_ids = 'hmdb')

Remove the prefixes from STITCH identifiers

Description

STITCH adds the NCBI Taxonomy ID as a prefix to Ensembl protein identifiers, e.g. "9606.ENSP00000170630", and "CID" followed by "s" or "m" (stereospecific or merged, respectively) in front of PubChem Compound Identifiers. It also pads the CID with zeros. This function removes these prefixes, leaving only the identifiers.

Usage

stitch_remove_prefixes(d, ..., remove = TRUE)

Arguments

d

Data frame, typically the output of stitch_links or stitch_actions.

...

Names of columns to remove prefixes from. NSE is supported.

remove

Logical: remove the prefixes? If FALSE, this function does nothing.

Value

Data frame with prefixes removed in the specified columns.

See Also

Examples

stitch_remove_prefixes(
    data.frame(a = c('9606.ENSP00000170630', 'CIDs00012345')),
    a
)

Extract a custom subnetwork from a large network

Description

Extract a custom subnetwork from a large network

Usage

subnetwork(
  network,
  nodes = NULL,
  order = 1L,
  mode = "all",
  mindist = 0L,
  return_df = TRUE
)

Arguments

network

Either an OmniPath interaction data frame, or an igraph graph object.

nodes

Character or integer vector: names, identifiers or indices of the nodes to build the subnetwork around.

order

Integer: order of neighbourhood around nodes; i.e., number of steps starting from the provided nodes.

mode

Character: "all", "out" or "in". Follow directed edges from the provided nodes in any, outbound or inbound direction, respectively.

mindist

Integer: The minimum distance to include the vertex in the result.

return_df

Logical: return an interaction data frame instead of an igraph object.

Value

A network data frame or an igraph object, depending on the “return_df“ parameter.

See Also


Reverse the direction of ontology relations

Description

Reverse the direction of ontology relations

Usage

swap_relations(relations)

Arguments

relations

The 'relations' component of the data returned by obo_parser or any '...ontology_download' function such as go_ontology_download. Depending on the tables argument of those functions the 'relations' can be a data frame or a nested list.

Value

Same type as the input, but the relations swapped: if in the input these pointed from each child to the parents, in the output they point from each parent to their children, and vice versa.

See Also

Examples

goslim_url <-
    "http://current.geneontology.org/ontology/subsets/goslim_generic.obo"
path <- tempfile()
httr::GET(goslim_url, httr::write_disk(path, overwrite = TRUE))
obo <- obo_parser(path)
unlink(path)
rel_swapped <- swap_relations(obo$relations)

Retain only SwissProt IDs

Description

Retain only SwissProt IDs

Usage

swissprots_only(uniprots, organism = 9606)

Arguments

uniprots

Character vector of UniProt IDs.

organism

Character or integer: name or identifier of the organism.

Value

Character vector with only SwissProt IDs.

Examples

swissprots_only(c("Q05BL1", "A0A654IBU3", "P00533"))
# [1] "P00533"

Downloads the list of transcription factors from TF census

Description

Vaquerizas et al. published in 2009 a list of transcription factors. This function retrieves Supplementary Table 2 from the article (http://www.nature.com/nrg/journal/v10/n4/index.html).

Usage

tfcensus_download()

Value

A data frame (tibble) listing transcription factors.

Examples

tfcensus <- tfcensus_download()
tfcensus
# # A tibble: 1,987 x 7
#    Class `Ensembl ID` `IPI ID` `Interpro DBD` `Interpro DNA-b.
#    <chr> <chr>        <chr>    <chr>          <chr>
#  1 a     ENSG0000000. IPI0021. NA             IPR001289
#  2 a     ENSG0000000. IPI0004. IPR000047;IPR. NA
#  3 a     ENSG0000000. IPI0001. IPR001356;IPR. NA
#  4 a     ENSG0000000. IPI0029. IPR000910;IPR. NA
#  5 a     ENSG0000000. IPI0001. IPR007087;IPR. IPR006794
# # . with 1,977 more rows, and 2 more variables: `HGNC symbol` <chr>,
# # `Tissue-specificity` <chr>

Translate gene, protein and small molecule identifiers

Description

Translates a vector of identifiers, resulting a new vector, or a column of identifiers in a data frame by creating another column with the target identifiers.

Usage

translate_ids(
  d,
  ...,
  uploadlists = FALSE,
  ensembl = FALSE,
  hmdb = FALSE,
  ramp = FALSE,
  chalmers = FALSE,
  entity_type = NULL,
  keep_untranslated = TRUE,
  return_df = FALSE,
  organism = 9606,
  reviewed = TRUE,
  complexes = NULL,
  complexes_one_to_many = NULL
)

Arguments

d

Character vector or data frame.

...

At least two arguments, with or without names. The first of these arguments describes the source identifier, the rest of them describe the target identifier(s). The values of all these arguments must be valid identifier types as shown in Details. The names of the arguments are column names. In case of the first (source) ID the column must exist. For the rest of the IDs new columns will be created with the desired names. For ID types provided as arguments without names, the name of the ID type will be used for column name.

uploadlists

Force using the uploadlists service from UniProt. By default the plain query interface is used (implemented in uniprot_full_id_mapping_table in this package). If any of the provided ID types is only available in the uploadlists service, it will be automatically selected. The plain query interface is preferred because in the long term, with caching, it requires less download and data storage.

ensembl

Logical: use data from Ensembl BioMart instead of UniProt.

hmdb

Logical: use HMDB ID translation data.

ramp

Logical: use RaMP ID translation data.

chalmers

Logical: use ID translation data from Chalmers Sysbio GEM.

entity_type

Character: "gene" and "smol" are short symbols for proteins, genes and small molecules respectively. Several other synonyms are also accepted.

keep_untranslated

In case the output is a data frame, keep the records where the source identifier could not be translated. At these records the target identifier will be NA.

return_df

Return a data frame even if the input is a vector.

organism

Character or integer, name or NCBI Taxonomy ID of the organism (by default 9606 for human). Matters only if uploadlists is FALSE.

reviewed

Translate only reviewed (TRUE), only unreviewed (FALSE) or both (NULL) UniProt records. Matters only if uploadlists is FALSE.

complexes

Logical: translate complexes by their members. Only complexes where all members can be translated will be included in the result. If NULL, the option omnipathr.complex_translation will be used.

complexes_one_to_many

Logical: allow combinatorial expansion or use only the first target identifier for each member of each complex. If NULL, the option omnipathr.complex_translation_one_to_many will be used.

Details

This function, depending on the uploadlists parameter, uses either the uploadlists service of UniProt or plain UniProt queries to obtain identifier translation tables. The possible values for from and to are the identifier type abbreviations used in the UniProt API, please refer to the table here: https://www.uniprot.org/help/api_idmapping. In addition, simple synonyms are available which realize a uniform API for the uploadlists and UniProt query based backends. These are the followings:

OmnipathR Uploadlists UniProt query Ensembl BioMart
uniprot ACC id uniprotswissprot
uniprot_entry ID entry name
trembl reviewed = FALSE reviewed = FALSE uniprotsptrembl
genesymbol GENENAME genes(PREFERRED) external_gene_name
genesymbol_syn genes(ALTERNATIVE) external_synonym
hgnc HGNC_ID database(HGNC) hgnc_symbol
entrez P_ENTREZGENEID database(GeneID)
ensembl ENSEMBL_ID ensembl_gene_id
ensg ENSEMBL_ID ensembl_gene_id
enst ENSEMBL_TRS_ID database(Ensembl) ensembl_transcript_id
ensp ENSEMBL_PRO_ID ensembl_peptide_id
ensgg ENSEMBLGENOME_ID
ensgt ENSEMBLGENOME_TRS_ID
ensgp ENSEMBLGENOME_PRO_ID
protein_name protein names
pir PIR database(PIR)
ccds database(CCDS)
refseqp P_REFSEQ_AC database(refseq)
ipro interpro
ipro_desc interpro_description
ipro_sdesc interpro_short_description
wikigene wikigene_name
rnacentral rnacentral
gene_desc description
wormbase database(WormBase)
flybase database(FlyBase)
xenbase database(Xenbase)
zfin database(ZFIN)
pbd PBD_ID database(PDB) pbd

For a complete list of ID types and their synonyms, including metabolite and chemical ID types which are not shown here, see id_types.

The mapping between identifiers can be ambiguous. In this case one row in the original data frame yields multiple rows or elements in the returned data frame or vector(s).

Value

  • Data frame: if the input is a data frame or the input is a vector and return_df is TRUE.

  • Vector: if the input is a vector, there is only one target ID type and return_df is FALSE.

  • List of vectors: if the input is a vector, there are more than one target ID types and return_df is FALSE. The names of the list will be ID types (as they were column names, see the description of the ... argument), and the list will also include the source IDs.

See Also

Examples

d <- data.frame(uniprot_id = c('P00533', 'Q9ULV1', 'P43897', 'Q9Y2P5'))
d <- translate_ids(d, uniprot_id = uniprot, genesymbol)
d
#   uniprot_id genesymbol
# 1     P00533       EGFR
# 2     Q9ULV1       FZD4
# 3     P43897       TSFM
# 4     Q9Y2P5    SLC27A5

Translate gene, protein and small molecule identifiers from multiple columns

Description

Especially when translating network interactions, where two ID columns exist (source and target), it is convenient to call the same ID translation on multiple columns. The translate_ids function is already able to translate to multiple ID types in one call, but is able to work only from one source column. Here too, multiple target IDs are supported. The source columns can be listed explicitely, or they might share a common stem, in this case the first element of ... will be used as stem, and the column names will be created by adding the suffixes. The suffixes are also used to name the target columns. If no suffixes are provided, the name of the source columns will be added to the name of the target columns. ID types can be defined the same way as for translate_ids. The only limitation is that, if the source columns are provided as stem+suffixes, they must be the same ID type.

Usage

translate_ids_multi(
  d,
  ...,
  suffixes = NULL,
  suffix_sep = "_",
  uploadlists = FALSE,
  ensembl = FALSE,
  hmdb = FALSE,
  chalmers = FALSE,
  entity_type = NULL,
  keep_untranslated = TRUE,
  organism = 9606,
  reviewed = TRUE
)

Arguments

d

A data frame.

...

At least two arguments, with or without names. These arguments describe identifier columns, either the ones we translate from (source), or the ones we translate to (target). Columns existing in the data frame will be used as source columns. All the rest will be considered target columns. Alternatively, the source columns can be defined as a stem and a vector of suffixes, plus a separator between the stem and suffix. In this case, the source columns will be the ones that exist in the data frame with the suffixes added. The values of all these arguments must be valid identifier types as shown at translate_ids. If ID type is provided only for the first source column, the rest of the source columns will be assumed to have the same ID type. For the target identifiers new columns will be created with the desired names, with the suffixes added. If no suffixes provided, the names of the source columns will be used instead.

suffixes

Column name suffixes in case the names should be composed of stem and suffix.

suffix_sep

Character: separator between the stem and suffixes.

uploadlists

Force using the 'uploadlists' service from UniProt. By default the plain query interface is used (implemented in uniprot_full_id_mapping_table in this package). If any of the provided ID types is only available in the uploadlists service, it will be automatically selected. The plain query interface is preferred because in the long term, with caching, it requires less download and data storage.

ensembl

Logical: use data from Ensembl BioMart instead of UniProt.

hmdb

Logical: use HMDB ID translation data.

chalmers

Logical: use ID translation data from Chalmers Sysbio GEM.

entity_type

Character: "gene" and "smol" are short symbols for proteins, genes and small molecules respectively. Several other synonyms are also accepted.

keep_untranslated

In case the output is a data frame, keep the records where the source identifier could not be translated. At these records the target identifier will be NA.

organism

Character or integer, name or NCBI Taxonomy ID of the organism (by default 9606 for human). Matters only if uploadlists is FALSE.

reviewed

Translate only reviewed (TRUE), only unreviewed (FALSE) or both (NULL) UniProt records. Matters only if uploadlists is FALSE.

Value

A data frame with all source columns translated to all target identifiers. The number of new columns is the product of source and target columns. The target columns are distinguished by the suffexes added to their names.

See Also

translate_ids

Examples

ia <- omnipath()
translate_ids_multi(ia, source = uniprot, target, ensp, ensembl = TRUE)

Retain only TrEMBL IDs

Description

Retain only TrEMBL IDs

Usage

trembls_only(uniprots, organism = 9606)

Arguments

uniprots

Character vector of UniProt IDs.

organism

Character or integer: name or identifier of the organism.

Value

Character vector with only TrEMBL IDs.

Examples

trembls_only(c("Q05BL1", "A0A654IBU3", "P00533"))
# [1] "Q05BL1" "A0A654IBU3"

Downloads TF-target interactions from TRRUST

Description

TRRUST v2 (https://www.grnpedia.org/trrust/) is a database of literature mined TF-target interactions for human and mouse.

Usage

trrust_download(organism = "human")

Arguments

organism

Character: either "human" or "mouse".

Value

A data frame of TF-target interactions.

Examples

trrust_interactions <- trrust_download()
trrust_interactions
# # A tibble: 11,698 x 4
#    source_genesymbol target_genesymbol effect reference
#    <chr>             <chr>              <dbl> <chr>
#  1 AATF              BAX                   -1 22909821
#  2 AATF              CDKN1A                 0 17157788
#  3 AATF              KLK3                   0 23146908
#  4 AATF              MYC                    1 20549547
#  5 AATF              TP53                   0 17157788
#  6 ABL1              BAX                    1 11753601
#  7 ABL1              BCL2                  -1 11753601
# # . with 11,688 more rows

Creates an ID translation table from UniProt data

Description

Creates an ID translation table from UniProt data

Usage

uniprot_full_id_mapping_table(
  to,
  from = "accession",
  reviewed = TRUE,
  organism = 9606
)

Arguments

to

Character or symbol: target ID type. See Details for possible values.

from

Character or symbol: source ID type. See Details for possible values.

reviewed

Translate only reviewed (TRUE), only unreviewed (FALSE) or both (NULL) UniProt records.

organism

Integer, NCBI Taxonomy ID of the organism (by default 9606 for human).

Details

For both source and target ID type, this function accepts column codes used by UniProt and some simple shortcuts defined here. For the UniProt codes please refer to https://www.uniprot.org/help/uniprotkb The shortcuts are entrez, genesymbol, genesymbol_syn (synonym gene symbols), hgnc, embl, refseqp (RefSeq protein), enst (Ensembl transcript), uniprot_entry (UniProtKB AC, e.g. EGFR_HUMAN), protein_name (full name of the protein), uniprot (UniProtKB ID, e.g. P00533). For a complete table please refer to translate_ids.

Value

A data frame (tibble) with columns 'From' and 'To', UniProt IDs and the corresponding foreign IDs, respectively.

See Also

Examples

uniprot_entrez <- uniprot_full_id_mapping_table(to = 'entrez')
uniprot_entrez
# # A tibble: 20,723 x 2
#    From   To
#    <chr>  <chr>
#  1 Q96R72 NA
#  2 Q9UKL2 23538
#  3 Q9H205 144125
#  4 Q8NGN2 219873
#  5 Q8NGC1 390439
# # . with 20,713 more rows

TrEMBL to SwissProt by gene names

Description

TrEMBL to SwissProt by gene names

Usage

uniprot_genesymbol_cleanup(uniprots, organism = 9606, only_trembls = TRUE)

Arguments

uniprots

Character vector possibly containing TrEMBL IDs.

organism

Character or integer: organism name or identifier.

only_trembls

Attempt to convert only known TrEMBL IDs of the organism. This is the recommended practice.

Details

Sometimes one gene or protein is represented by multiple identifiers in UniProt. These are typically slightly different isoforms, some of them having TrEMBL IDs, some of the SwissProt. For the purposes of most systems biology application, the most important is to identify the protein or gene in a way that we can recognize it in other datasets. Unfortunately UniProt or Ensembl do not seem to offer solution for this issue. Hence, if we find that a TrEMBL ID has a gene name which is also associated with a SwissProt ID, we replace this TrEMBL ID by that SwissProt. There might be a minor difference in their sequence, but most of the omics analyses do not even consider isoforms. And it is quite possible that later UniProt will convert the TrEMBL record to an isoform within the SwissProt record. Typically this translation is not so important (but still beneficial) for human, but for other organisms it is critical especially when translating from foreign identifiers.

This function accepts a mixed input of UniProt IDs and provides a distinct translation table that you can use to translate your data.

Value

Data frame with two columns: "input" and "output". The first one contains all identifiers from the input vector 'uniprots'. The second one has the corresponding identifiers which are either SwissProt IDs with gene names identical to the TrEMBL IDs in the input, or if no such records are available, the output has the input items unchanged.

Examples

## Not run: 
uniprot_genesymbol_cleanup('Q6PB82', organism = 10090)
# # A tibble: 1 × 2
#   input  output
#   <chr>  <chr>
# 1 Q6PB82 O70405

## End(Not run)

ID translation data from UniProt ID Mapping

Description

Retrieves an identifier translation table from the UniProt ID Mapping service (https://www.uniprot.org/help/id_mapping).

Usage

uniprot_id_mapping_table(identifiers, from, to, chunk_size = NULL)

Arguments

identifiers

Character vector of identifiers

from

Character or symbol: type of the identifiers provided. See Details for possible values.

to

Character or symbol: identifier type to be retrieved from UniProt. See Details for possible values.

chunk_size

Integer: query the identifiers in chunks of this size. If you are experiencing download failures, try lower values.

Details

This function uses the uploadlists service of UniProt to obtain identifier translation tables. The possible values for 'from' and 'to' are the identifier type abbreviations used in the UniProt API, please refer to the table here: uniprot_idmapping_id_types or the table of synonyms supported by the current package: translate_ids. Note: if the number of identifiers is larger than the chunk size the log message about the cache origin is not guaranteed to be correct (most of the times it is still correct).

Value

A data frame (tibble) with columns 'From' and 'To', the identifiers provided and the corresponding target IDs, respectively.

See Also

translate_ids

Examples

uniprot_genesymbol <- uniprot_id_mapping_table(
    c('P00533', 'P23771'), uniprot, genesymbol
)
uniprot_genesymbol
# # A tibble: 2 x 2
#   From   To
#   <chr>  <chr>
# 1 P00533 EGFR
# 2 P23771 GATA3

UniProt identifier type label

Description

UniProt identifier type label

Usage

uniprot_id_type(label)

Arguments

label

Character: an ID type label, as shown in the table at translate_ids

Value

Character: the UniProt specific ID type label, or the input unchanged if it could not be translated (still might be a valid identifier name). This is the label that one can use in UniProt REST queries.

See Also

Examples

ensembl_id_type("entrez")
# [1] "database(GeneID)"

ID types available in the UniProt ID Mapping service

Description

ID types available in the UniProt ID Mapping service

Usage

uniprot_idmapping_id_types()

Value

A data frame listing the ID types.

Examples

uniprot_idmapping_id_types()

Unique intercellular interactions

Description

In the intercellular network data frames produced by intercell_network, by default each pair of annotations for an interaction is represented in a separate row. This function drops the annotations and keeps only the distinct interacting pairs.

Usage

unique_intercell_network(network, ...)

Arguments

network

An intercellular network data frame as produced by intercell_network.

...

Additional columns to keep. Note: if these have multiple values for an interacting pair, only the first row will be preserved.

Value

A data frame with interacting pairs and interaction attributes.

See Also

Examples

icn <- intercell_network()
icn_unique <- unique_intercell_network(icn)

Separate evidences by direction and effect sign

Description

Separate evidences by direction and effect sign

Usage

unnest_evidences(data, longer = FALSE, .keep = FALSE)

Arguments

data

An interaction data frame with "evidences" column.

longer

Logical: If TRUE, the "evidences" column is split into rows.

.keep

Logical: keep the "evidences" column. When unnesting to longer data frame, the "evidences" column will contain the unnested evidences, while the original column will be retained under the "all_evidences" name (if '.keep = TRUE').

Value

The data frame with new columns or new rows by direction and sign.

See Also

Examples

## Not run: 
op <- omnipath_interactions(fields = "evidences")
op <- unnest_evidences(op)
colnames(op)

## End(Not run)

UniProt Uploadlists identifier type label

Description

UniProt Uploadlists identifier type label

Usage

uploadlists_id_type(label, side = "from")

Arguments

label

Character: an ID type label, as shown in the table at translate_ids

side

Character: either "from" or "to": direction of the mapping.

Value

Character: the UniProt Uploadlists specific ID type label, or the input unchanged if it could not be translated (still might be a valid identifier name). This is the label that one can use in UniProt Uploadlists (ID Mapping) queries.

See Also

Examples

ensembl_id_type("entrez")
# [1] "GeneID"

Protein-protein interactions from Vinayagam 2011

Description

Retrieves the Supplementary Table S6 from Vinayagam et al. 2011. Find out more at https://doi.org/10.1126/scisignal.2001699.

Usage

vinayagam_download()

Value

A data frame (tibble) with interactions.

Examples

vinayagam_interactions <- vinayagam_download()
vinayagam_interactions
# # A tibble: 34,814 x 5
#    `Input-node Gen. `Input-node Gen. `Output-node Ge. `Output-node Ge.
#    <chr>                       <dbl> <chr>                       <dbl>
#  1 C1orf103                    55791 MNAT1                        4331
#  2 MAST2                       23139 DYNLL1                       8655
#  3 RAB22A                      57403 APPL2                       55198
#  4 TRAP1                       10131 EXT2                         2132
#  5 STAT2                        6773 COPS4                       51138
# # . with 34,804 more rows, and 1 more variable:
# # `Edge direction score` <dbl>

All nodes of a subtree starting from the selected nodes

Description

Starting from the selected nodes, recursively walks the ontology tree until it reaches either the root or leaf nodes. Collects all visited nodes.

Usage

walk_ontology_tree(
  terms,
  ancestors = TRUE,
  db_key = "go_basic",
  ids = TRUE,
  method = "gra",
  relations = c("is_a", "part_of", "occurs_in", "regulates", "positively_regulates",
    "negatively_regulates")
)

Arguments

terms

Character vector of ontology term IDs or names. A mixture of IDs and names can be provided.

ancestors

Logical: if FALSE the ontology tree is traversed towards the leaf nodes; if TRUE, the tree is traversed until the root. The former returns the ancestors (parents), the latter the descendants (children).

db_key

Character: key to identify the ontology database. For the available keys see omnipath_show_db.

ids

Logical: whether to return IDs or term names.

method

Character: either "gra" or "lst". The implementation to use for traversing the ontology tree. The graph based implementation is faster than the list based, the latter will be removed in the future.

relations

Character vector of ontology relation types. Only these relations will be used.

Details

Note: this function relies on the database manager, the first call might take long because of the database load process. Subsequent calls within a short period should be faster. See get_ontology_db.

Value

Character vector of ontology IDs. If the input terms are all leaves or roots NULL is returned. The starting nodes won't be included in the result unless they fall onto the traversal path from other nodes.

See Also

Examples

walk_ontology_tree(c('GO:0006241', 'GO:0044211'))
# [1] "GO:0006139" "GO:0006220" "GO:0006221" "GO:0006241" "GO:0006725"
# [6] "GO:0006753" "GO:0006793" "GO:0006796" "GO:0006807" "GO:0008150"
# ... (truncated)
walk_ontology_tree(c('GO:0006241', 'GO:0044211'), ancestors = FALSE)
# [1] "GO:0044210" "GO:0044211"
walk_ontology_tree(
    c('GO:0006241', 'GO:0044211'),
    ancestors = FALSE,
    ids = FALSE
)
# [1] "'de novo' CTP biosynthetic process" "CTP salvage"

Interaction records having certain extra attributes

Description

Interaction records having certain extra attributes

Usage

with_extra_attrs(data, ...)

Arguments

data

An interaction data frame.

...

The name(s) of the extra attributes; NSE is supported.

Value

The data frame filtered to the records having the extra attribute.

See Also

Examples

i <- omnipath(fields = "extra_attrs")
with_extra_attrs(i, Macrophage_type)

Interactions having references

Description

Interactions having references

Usage

with_references(data, resources = NULL)

Arguments

data

An interaction data frame.

resources

Character: consider only these resources. If 'NULL', records with any reference will be accepted.

Value

A subset of the input interaction data frame.

Examples

cc <- import_post_translational_interactions(resources = 'CellChatDB')
with_references(cc, 'CellChatDB')

Retrieves data from Zenodo

Description

Zenodo is a repository of large scientific datasets. Many projects and publications make their datasets available at Zenodo. This function downloads an archive from Zenodo and extracts the requested file.

Usage

zenodo_download(
  path,
  reader = NULL,
  reader_param = list(),
  url_key = NULL,
  zenodo_record = NULL,
  zenodo_fname = NULL,
  url_param = list(),
  url_key_param = list(),
  ...
)

Arguments

path

Character: path to the file within the archive.

reader

Optional, a function to read the connection.

reader_param

List: arguments for the reader function.

url_key

Character: name of the option containing the URL

zenodo_record

The Zenodo record ID, either integer or character.

zenodo_fname

The file name within the record.

url_param

List: variables to insert into the URL string (which is returned from the options).

url_key_param

List: variables to insert into the 'url_key'.

...

Passed to archive_extractor

Value

A connection

Examples

# an example from the OmnipathR::remap_tf_target_download function:
remap_dorothea <- zenodo_download(
    zenodo_record = 3713238,
    zenodo_fname = 'tf_target_sources.zip',
    path = (
        'tf_target_sources/chip_seq/remap/gene_tf_pairs_genesymbol.txt'
    ),
    reader = read_tsv,
    reader_param = list(
        col_names = c(
            'source_genesymbol',
            'target_genesymbol',
            'target_ensembl',
            'score'
        ),
        col_types = cols(),
        progress = FALSE
    ),
  resource = 'ReMap'
)