Map Uniprot accession numbers with Entrez Gene identifiers

Description

org.Rn.egUNIPROT is an R object that contains mappings between Entrez Gene identifiers and Uniprot accession numbers.

Details

This object is a simple mapping of Entrez Gene identifiers http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene to Uniprot Accession Numbers.

Mappings were based on data provided by NCBI (link above) with an exception for fly, which required retrieving the data from ensembl http://www.ensembl.org/biomart/martview/

Examples

    x <- org.Rn.egUNIPROT
    # Get the entrez gene IDs that are mapped to a Uniprot ID
    mapped_genes <- mappedkeys(x)
    # Convert to a list
    xx <- as.list(x[mapped_genes])
    if(length(xx) > 0) {
      # Get the Uniprot gene IDs for the first five genes
      xx[1:5]
      # Get the first one
      xx[[1]]
    }