Use this function to map molecule identifiers of different species to Reactome Identifiers.

  input_format = NULL,
  projection = FALSE,
  interactors = FALSE,



A vector, local file path or URL that points to your identifiers list.


(Optional) This function will automatically identify your supplied input's format. But in case of unexpected issues or if you want to be explicit, set this argument to one of:

  • "vector": If you supplied a simple vector (numeric or character) as input.

  • "file": If you supplied a local file path pointing to a correctly-formatted text file.

  • "url": If you supplied a URL pointing to a correctly-formatted text file.


Logical (default = FALSE) Should non-human identifiers be projected to their human equivalents? (using Reactome orthology data)


Logical (default = FALSE) Should IntAct interaction data be included?


rbioapi option(s). See rba_options's arguments manual for more information on available options.


List containing your identifiers and the IDS and resources they are mapped to.

Corresponding API Resources



  • Fabregat A, Sidiropoulos K, Viteri G, Forner O, Marin-Garcia P, Arnau V, D'Eustachio P, Stein L, Hermjakob H. Reactome pathway analysis: a high-performance in-memory approach. BMC bioinformatics. 2017 Mar;18(1) 142. doi: 10.1186/s12859-017-1559-2. PubMed PMID: 28249561. PubMed Central PMCID: PMC5333408.

  • Reactome Analysis Services API Documentation

See also


# \donttest{
rba_reactome_analysis_mapping(c("Q8SQ34", "cd40"))
# }