Hi Marcos,

We already have probe and chip packages provided for that affy chip here:

http://www.bioconductor.org/packages/devel/data/annotation/

And you can easily use the AnnotationDbi package to make an annotation 
package from the resources at affy.  You can see relevant documentation 
here in the pdf called " SQLForge: An easy way to create a new 
annotation package with a standard database schema.":

http://www.bioconductor.org/packages/release/bioc/html/AnnotationDbi.html

Please let us know if you have further questions,


   Marc


On 01/12/2012 07:58 AM, Marcos Pinho wrote:
> Dear List,
>
> could anybody help to convert affy probes for the S.aureus chip into gene
> names. i am using Limma to generate a topTable for my comparisons but
> cannot get an output with more info than affy probe IDs.
>
> Regards,
>
>
>
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