Re: converting gene name to affy probe

Hi Sebastien,

Thanks for the tip :

ls(hgu133aSYMBOL)[mget(ls(hgu133aSYMBOL), hgu133aSYMBOL) %in% gensym]
works fine

I would be grateful if you can tell me how to convert Affy probe to gene name? i.e. the opposite way

I tried using hgu133aGENENAME but that didn't work as its using the description. 

How do I use hgu133aSYMBOL to get gene name from affy probe.

Many thanks

Ruppert

> Date: Tue, 6 May 2008 13:07:22 +1000> From: seb@...> To:
ruppert7@...> Subject: Re: [BioC] converting gene name to
affy probe> > Ruppert Valentino wrote:> > Hello, I am trying to convert a file of gene names to
corresponding affy probe names. I managed to write a script that puts the genes in an array then I use the
feat = getFeature(symbol = gensym, type = "affy_hg_u133a", mart = mart) in biomaRt however I seem to hit a
snag when there is more than probe for a gene name. Does anyone know of an existing script that can do this?
thanks Ruppert> > _________________________________________________________________> > Win
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http://news.gmane.org/gmane.science.biology.informatics.conductor> >> >!
  > > I think this should do what you want:> library(hgu133a.db)>
ls(hgu133aSYMBOL)[mget(ls(hgu133aSYMBOL), hgu133aSYMBOL) %in% gensym]> > hope that helps,> Sebastien
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