Hi Steffen and other biomaRt gurus I can't see an option in useMart(), but can I specify the version (eg ENSEMBL 39 not 40) Thanks Aedin -- Aed?n Culhane Harvard School of Public Health, Dana-Farber Cancer Institute

Hi Aedin, This is currently not possible, you can only connect to the latest version of Ensembl. biomaRt in web service mode will have this option enabled but this functionality still has to be developed by the BioMart developers. On the other hand it would require only a small change in the biomaRt code to enable you to access older versions of Ensembl (still present in their database) via biomaRt in MySQL mode. I'll add this to the code. best, Steffen aedin culhane wrote: > Hi Steffen and other biomaRt gurus > I can't see an option in useMart(), but can I specify the version (eg > ENSEMBL 39 not 40) > Thanks > Aedin > > > -- Steffen Durinck, Ph.D. Oncogenomics Section Pediatric Oncology Branch National Cancer Institute, National Institutes of Health URL: http://home.ccr.cancer.gov/oncology/oncogenomics/ Phone: 301-402-8103 Address: Advanced Technology Center, 8717 Grovemont Circle Gaithersburg, MD 20877