org.EcK12.egGENENAME {org.EcK12.eg.db} | R Documentation

## Map between Entrez Gene IDs and Genes

### Description

org.EcK12.egGENENAME is an R object that maps entrez gene identifiers to the corresponding gene name.

### Details

Each entrez gene identifier maps to a named vector containing the gene name. The vector name corresponds to the entrez gene identifier. If the gene name is unknown, the vector will contain an `NA`.

Gene names currently include both the official (validated by a nomenclature committee) and preferred names (interim selected for display) for genes. Efforts are being made to differentiate the two by adding a name to the vector.

Mappings were based on data provided by: Entrez Gene ( ftp://ftp.ncbi.nlm.nih.gov/gene/DATA ) on 2008-Sep2

### Examples

            x <- org.EcK12.egGENENAME
            # Get the gene names that are mapped to an entrez gene identifier
            mapped_genes <- mappedkeys(x)
            # Convert to a list
            xx <- as.list(x[mapped_genes])
            if(length(xx) > 0) {
              # Get the GENE NAME for the first five genes
              xx[1:5]
              # Get the first one
              xx[[1]]
            }

[Package org.EcK12.eg.db version 2.2.6 Index]