Does anyone know where I could get a program that would perform a helical wheel plot??. I would prefer a MAC based prg, as my access to an IBM is limited..Thanks!!!..Dan Dan Roberts BRISTOL-MYERS-SQUIBB PHARM. RES. CENTER Cardio-Vascular Biochem Dept. PRINCETON, NEW JERSEY U.S.A. PLANET EARTH, MILKY-WAY GALAXY <<<<INTERNET ADDRESS>>>>Roberts_D at BMS.COM