[Bioperl-l] Mapping related accession numbers

[Barry Moore]

I guess this is a bit off topic since the solution likely won't involve 
BioPerl, but hopefully you'll let me slide this time.  Given a RefSeq 
protein sequence (NP_ or XP_) I want to get the associated nucleotide 
sequence (NM_ or XM_).  Does anyone know of a file I can download that 
already has that mapped?

Barry

-- 
Barry Moore
Dept. of Human Genetics
University of Utah
Salt Lake City, UT