[BioC] Incomplete EntrezID annotations for the Mouse 430 v2.0 probe-set

[Martin Morgan]

On 11/02/2010 11:14 AM, ANJAN PURKAYASTHA wrote:
> 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?

Hi Anjan

What is your sessionInfo() (else how could we know what an 'updated'
annotation file is?) and how did you preform the mapping (short,
hopefully reproducible, code)?

Martin

> Many thanks in advance,
> Anjan
> 


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