Entering edit mode
7.3 years ago
lippeveld.maxim
•
0
Hi
I am working on a microarray study with data from a Rice AffyMetrix chip. I have done a differential expression analysis, giving me a list of AffyMetrix probe ids. I would like to convert these to Entrez Gene Ids using R. Is this possible?
Thanks for your help!
The way to do this in R would be to check if there is an annotation package for the Affymetrix rice chip in Bioconductor, although I've had a quick look, and I couldn't find one.
You could try BioMart.
Otherwise, the best thing to do is to get the latest version of the Affymetrix annotations from the technical documentation on the Affymetrix website.
Great, thank you! I ended up using the rice annotation file from affymetrix.