Dr. Cummings is a co-founder of Selexys. He is the director of the National Center for Functional Glycomics and a Professor in the Department of Surgery at Beth Israel Deaconess Medical Center, Harvard Medical School. Dr. Cummings is a Biochemist and a leader in the emerging field of Glycobiology. Drs. Cummings and McEver co-discovered and characterized PSGL-1 and defined the key carbohydrate determinants necessary for binding P-selectin.