Hello All I am using GSE4137 for identifying differentaily gene expression analysis. For annotation i am using the platform annotation file provided by the vendor alongside their microarray platform. It has the GB_ACC number for each probe id. I want the corresponding entrez ids for each GB_ACC. My query is :- *How to convert GB_ACC number into Entrez id using R and Bioconductor ?* Regards~ [[alternative HTML version deleted]]

There are various approaches that can be used. If your organism is represented among the org.* annotation packages, as human is, you can use code like > library(org.Hs.eg.db) > get("AF414429", revmap(org.Hs.egACCNUM)) [1] "1" On Sun, Jan 1, 2012 at 7:44 AM, Reema Singh <reema28sep@gmail.com> wrote: > Hello All > > I am using GSE4137 for identifying differentaily gene expression analysis. > For annotation i am using the platform annotation file provided by the > vendor alongside their microarray platform. It has the GB_ACC number for > each probe id. I want the corresponding entrez ids for each GB_ACC. My > query is :- > > *How to convert GB_ACC number into Entrez id using R and Bioconductor ?* > > > Regards~ > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor@r-project.org > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor > [[alternative HTML version deleted]]