hgu95av2ENSEMBL {hgu95av2.db}R Documentation

Map Ensembl gene accession numbers with Entrez Gene identifiers

Description

hgu95av2ENSEMBL is an R object that contains mappings between manufacturer identifiers and Ensembl gene accession numbers.

Details

This object is a simple mapping of manufacturer identifiers to Ensembl gene Accession Numbers.

Mappings were based on data provided by BOTH of these sources: http://www.ensembl.org/biomart/martview/ ftp://ftp.ncbi.nlm.nih.gov/gene/DATA

For most species, this mapping is a combination of manufacturer to ensembl IDs from BOTH NCBI and ensembl. Users who wish to only use mappings from NCBI are encouraged to see the ncbi2ensembl table in the appropriate organism package. Users who wish to only use mappings from ensembl are encouraged to see the ensembl2ncbi table which is also found in the appropriate organism packages. These mappings are based upon the ensembl table which is contains data from BOTH of these sources in an effort to maximize the chances that you will find a match.

For worms and flies however, this mapping is based only on sources from ensembl, as these organisms do not have ensembl to entrez gene mapping data at NCBI.

Examples

    x <- hgu95av2ENSEMBL
    # Get the entrez gene IDs that are mapped to an Ensembl ID
    mapped_genes <- mappedkeys(x)
    # Convert to a list
    xx <- as.list(x[mapped_genes])
    if(length(xx) > 0) {
      # Get the Ensembl gene IDs for the first five genes
      xx[1:5]
      # Get the first one
      xx[[1]]
    }
    #For the reverse map ENSEMBL2PROBE:
    # Convert to a list
    xx <- as.list(hgu95av2ENSEMBL2PROBE)
    if(length(xx) > 0){
       # Gets the entrez gene IDs for the first five Ensembl IDs
       xx[1:5]
       # Get the first one
       xx[[1]]
    }

[Package hgu95av2.db version 2.10.1 Index]