Hi,
I have run into the following problem. I created a probeID-EntrezID mapping
for the Affy mouse array from the cognate annotation file Mouse4302.db.
Unfortunately about 10000 genes do not have corresponding EntrezID.
Many of these are genes with known functions. If I cannot map a EntrezID to
these then I cannot retrieve GO annotations and consequently I cannot do a
Gene Set Enrichment analysis using GOstats.
Does anyone have an update annotation file?
Many thanks in advance,
Anjan

-- 
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anjan purkayastha, phd.
research associate
fas center for systems biology,
harvard university
52 oxford street
cambridge ma 02138
phone-703.740.6939
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