Sorry, the pbwiki thing was a bad idea... not very easy. Just email me the information regarding use of biopython. I'll sort it out. Thanks, Iddo -- Iddo Friedberg, Ph.D. Burnham Institute for Medical Research 10901 N. Torrey Pines Rd. La Jolla, CA 92037 Tel: (858) 646 3100 x3516 Fax: (858) 713 9949 http://iddo-friedberg.org