Thanks. Alexandre. That's the tool I am looking for. I thought I saw that before, just forget its names. Qiudao. On Wed, Mar 24, 2010 at 10:38 AM, Alexandre Kuhn <kuhnam at="" mail.nih.gov=""> wrote: > Quidao, > you can check the package annotationTools > (http://www.bioconductor.org/packages/release/bioc/html/annotationTo ols.html > ). The accompanying vignette shows how to perform such a mapping using the > package. > Alexandre > > >> -----Original Message----- >> From: zrl [mailto:zrl1974 at gmail.com] >> Sent: Wednesday, March 24, 2010 9:50 AM >> To: bioconductor >> Subject: [BioC] how to do cross species annotation? >> >> Dear list, >> >> If I have a set of affy probes (probe sets) from Human platform, and I >> want identify the corresponding probes (probe sets) in mouse platform, >> vice versa. >> >> Is there a tool/package to do that? Thanks. >> >> Qiudao >> >> _______________________________________________ >> Bioconductor mailing list >> Bioconductor at stat.math.ethz.ch >> https://stat.ethz.ch/mailman/listinfo/bioconductor >> Search the archives: >> http://news.gmane.org/gmane.science.biology.informatics.conductor > >

Thank you Michael, that's a very straightforward way to do it. Alexandre aslo provide an more direct way to do it. -Qiudao On Wed, Mar 24, 2010 at 10:03 AM, michael watson (IAH-C) <michael.watson at="" bbsrc.ac.uk=""> wrote: > I'd use biomaRt > > 3 queries: > > Affy human to human ensembl id > Human ensemble id to mouse ensembl id > Mouse ensembl id to Affy mouse > > Then join them using the merge() function > > -----Original Message----- > From: bioconductor-bounces at stat.math.ethz.ch [mailto :bioconductor-bounces at stat.math.ethz.ch] On Behalf Of zrl > Sent: 24 March 2010 13:50 > To: bioconductor > Subject: [BioC] how to do cross species annotation? > > Dear list, > > If I have a set of affy probes (probe sets) from Human platform, and I > want identify the corresponding probes (probe sets) in mouse platform, > vice versa. > > Is there a tool/package to do that? Thanks. > > Qiudao > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor >