Hi,

I have a bed file of mapped reads (mapped to mm9) and I need to convert mm9 to Grcm38 (ensemble version 75) format. I was wondering if there is a liftover chain file already available to do that and if someone can point me to that. Since the chain file creation steps in the wiki (http://genomewiki.ucsc.edu/index.php/Minimal_Steps_For_LiftOver) are not well documented and take longer for large genomes like that of mouse I was wondering if someone has already tried that and has a script or workflow with the right set of paramers to do that.

regards