org.Hs.egCHR {org.Hs.eg.db}R Documentation

Map Entrez Gene IDs to Chromosomes

Description

org.Hs.egCHR is an R object that provides mappings between entrez gene identifiers and the chromosome that contains the gene of interest.

Details

Each entrez gene identifier maps to a vector of a chromosome.

Mappings were based on data provided by: Entrez Gene ( ftp://ftp.ncbi.nlm.nih.gov/gene/DATA ) on 2008-Apr2

Examples

        x <- org.Hs.egCHR
        # Get the entrez gene identifiers that are mapped to a chromosome
        mapped_genes <- mappedkeys(x)
        # Convert to a list
        xx <- as.list(x[mapped_genes])
        if(length(xx) > 0) {
          # Get the CHR for the first five genes
          xx[1:5]
          # Get the first one
          xx[[1]]
        }

[Package org.Hs.eg.db version 2.2.0 Index]