[BioC] mapping kegg gene ids to probeset

[Sean Davis]

On 11/10/05 3:13 AM, "Dr.Mayhaus Manuel" <manuel.mayhaus at unimib.it> wrote:

> Hi,
> 
> Does anybody know how to obtain KEGG gene-ids for a list of affymetrix
> probesets.
> I manage to retrieve probesets or entrez-gene-ids for a given KEGG
> pathway, but I need to know which probeset represent the individual
> KEGG gene (eg.: the gene "mmu:108960" is part of pathway "mmu04210",
> but what is the underlying entrez gene or probeset...)
> Thanks in advance for any help

The annotation packages have this information in them.  For hgu133a, for
example, there is the hgu133aPATH that contains all the pathways that a
particular affy id is part of.

> library(hgu133a)
> mget(ls(hgu133aPATH)[1:20],hgu133aPATH)

Sean