Radisky, Evette S., Ph.D. wrote: >The residues at these positions by sequence alignment are D, > P, G, and S. Don't Perturb Glycosylation Sites. Sorry, I couldn't resist. -- Paul Paukstelis, Ph.D. Research Associate Institute for Cellular and Molecular Biology The University of Texas at Austin P: 512-471-4778, F: 512-232-3420 [log in to unmask]