xenopuslaevisCHR {xenopuslaevis}R Documentation

Mappings between probe identifiers and the chromosome numbers the genes represented by the probe ids reside

Description

Each chromosome of a given organism is assigned a number or letter for labeling purpose. xenopuslaevisCHR maps probe ids to the numbers or letters labeling chromosomes where the genes corresponding to the probe ids reside

Details

Since a given gene may be found in more than one chromosomes, each probe id is mapped to a character vector of length 1 or greater. Probe ids that can not be mapped to any chromosome at the time when the package was built are assinged NAs.

Mappings were based on data provided by:

LocusLink:ftp://ftp.ncbi.nih.gov/refseq/LocusLink/LL_tmpl.gz. Built: September 16, 2004

Package built: Fri Sep 17 09:04:28 2004

Examples

        # Convert to a list
        xx <- as.list(xenopuslaevisCHR)
        # Remove probe ids that do not map to any CHRLOC
        xx <- xx[!is.na(xx)]
        if(length(xx) > 0){
            # Get the chromosome number for the first five probes
            xx[1:5]
            # Get the first one
            xx[[1]]
        }

[Package xenopuslaevis version 1.6.5 Index]