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The proximity to medicine paid off. Subbarao made friends and connections at the hospital and switched to a day job as a researcher in the Division of Biochemistry. His initial project involved purifying molecules out of living cells, dissecting them chemically to determine their compositions\u2014 in essence, performing a biochemical \u201cautopsy\u201d on cells. The approach required more persistence than imagination, but it produced remarkable dividends. Subbarao purified a molecule called ATP, the source of energy in all living beings (ATP carries chemical \u201cenergy\u201d in the cell), and another molecule called creatine, the energy carrier in muscle cells. Any one of these achievements should have been enough to guarantee him a professorship at Harvard. But Subbarao was a foreigner, a reclusive, nocturnal, heavily accented vegetarian who lived in a one-room apartment downtown, befriended only by other nocturnal recluses such as Farber. In 1940, denied tenure and recognition, Yella huffed off to join Lederle Labs, a pharmaceutical laboratory in upstate New York, owned by the American Cyanamid Corporation, where he had been asked to run a group on chemical synthesis.<\/p>\n\n\n\n