On Sunday 20 January 2008 21:15:55 joseph wrote: > Hi > > I have a data frame generated from mouse promoter tiling > arrays with the first column as genomic position from Assembly mm8 > (Feb.2006) and the second column is a p-value associated with the probe at > the indicated position. I would like to convert the first column to the > Assembly mm9 (July 2007). Can > anybody direct me to the right Package? liftover: http://genome.ucsc.edu/cgi-bin/hgLiftOver there is also a stand alone version downloadable. best wishes, ido