[BioC] Appropriate Probe annotation for HT-HGU133A chips

James W. MacDonald jmacdon at med.umich.edu
Wed Apr 22 20:51:23 CEST 2009

Hi Hannah,

If I'm not mistaken, you want the hgu133a2.db.



Tipney, Hannah wrote:
> Please forgive this probably obvious question, but I am working with
> data from the High Throughput Affymetrix chips for the first time. So
> simply, for the ht-hgu133a chips should I be using the hgu133a.db,
> hgu133a2.db or hgu133plus2.db Bioconductor probe annotations in
> conjunction with hthgu133acdf and hthgu133aprobe? I assume hgu133a.db
> but it is not entirely clear from the Affymetrix site. Thanks in
> advance Hannah
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James W. MacDonald, M.S.
Douglas Lab
University of Michigan
Department of Human Genetics
5912 Buhl
1241 E. Catherine St.
Ann Arbor MI 48109-5618

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