mgu74aUNIGENE {mgu74a} | R Documentation

## Map between Manufacturer Identifiers and UniGene cluster identifiers

### Description

mgu74aUNIGENE is an R environment that provides mappings between manufacturer ids and UniGene ids.

### Details

Each manufacturer id is mapped to a UniGene id. An `NA` is reported if the manufacturer id cannot be mapped to UniGene at this time.

A UniGene id represents a cluster of sequences of a gene. Using UniGene ids one can query the UniGene database for information about the sequences or the LocusLink database for information about the genes.

Mappings were based on data provided by:

Entrez Gene:http://gopher5/compbio/annotationSourceData/ftp.ncbi.nlm.nih.gov/gene/DATA/. Built: Source data downloaded from Entrez Gene on Tue May 17 15:12:32 2005

Package built Tue May 17 15:19:01 2005

### References

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene

### Examples

        # Convert the environment to a list
        xx <- as.list(mgu74aUNIGENE)
        # Remove probe ids that do no map to any UniGene id
        xx <- xx[!is.null(xx)]
        if(length(xx) > 0){
            # The UniGene ids for the first two elements of XX
            xx[1:2]
            # Get the first one
            xx[[1]]
        }

[Package mgu74a version 1.8.4 Index]