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]