Dr. Weissman earned his B.S. in Biochemistry with Honors from SUNY at Stony Brook in 1977 and his M.D. from Albert Einstein College of Medicine in NYC 1981. Following Medical Residency at Washington University in St. Louis he came to the NIH in Bethesda in 1984 as a Fellow in the Cell Biology and Metabolism Branch of the National Institutes of Child Health and Human Development. In 1989 Dr. Weissman established an independent research program at the National Cancer Institute in Bethesda. In 2001 he was appointed Laboratory Chief and is currently Chief of the NCI Laboratory of Protein Dynamics and Signaling in Frederick MD. Dr. Weissman's main interests are in the function and regulation of transmembrane receptors, the role of the ubiquitin system in protein regulation, and in development of approaches to manipulate specific components of the ubiquitin system as a basis for therapeutics. Dr. Weissman has been elected to the medical honor society Alpha Omega Alpha, to the American Society for Clinical Investigation and most recently, in 2004, to the Association of American Physicians.