org.At.tairENTREZID {org.At.tair.db} | R Documentation |
org.At.tairENTREZID is an R object that contains mappings between TAIR accession numbers and NCBI Entrez Gene identifiers.
This object is a simple mapping of Entrez Gene identifiers http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene to TAIR Accession Numbers.
Mappings were based on data provided by: ftp://ftp.ncbi.nlm.nih.gov/gene/DATA
x <- org.At.tairENTREZID # Get the ORF IDs that are mapped to an Entrez Gene ID mapped_genes <- mappedkeys(x) # Convert to a list xx <- as.list(x[mapped_genes]) if(length(xx) > 0) { # Get the Entrez gene IDs for the first five genes xx[1:5] # Get the first one xx[[1]] }