Off topic:Annotation Of Affymetrix Human Exon St. 1.0 In R

Question

[Paul]

Hi I'm wondering how I can convert my Affymetrix exon array metaprobeset IDs to Entrez gene Ids. I've tried using DAVID gene ID conversion but it only converted about 10,000 of 16,000 identifiers and unless I'm very much mistaken biomaRt doesn't have the option of using these kinds of identifiers as filter.

Anyone have any ideas of how I could do this quickly?

Thanks!