Research At The Rockefeller Institute
Fruton was a researcher at the Rockefeller Institute from 1934 to 1945, part of Max Bergmann's long-term and very successful research program in protein chemistry. In his earliest work there, Fruton tested the stereochemical specificity of dipeptidase. Under the tutelage of fellow Bergmann lab researcher Leonidas Zervas, a pioneer in peptide synthesis, Fruton synthesized stereospecific dipeptides and other small peptides as enzyme substrates. Fruton and his colleagues found significant instances of specificity in a range of proteases—observations that were relevant to the ongoing theoretical discussions of protein structure. His most significant discovery at the Rockefeller Institute was a synthetic peptide substrate for pepsin, contrary to the common idea that pepsin would not act on short synthetic peptides. As a side project, he also worked on applications of Bergmann and Zervas's carbobenzoxy method of peptide synthesis and the some of the associated side reactions.
Between December 1941 and the end of World War II, research in Bergmann's lab shifted from basic protein chemistry to war-related research under the National Defense Research Committee, part of the Office of Scientific Research and Development. Fruton studied the chemistry of nitrogen mustards. In 1943, Fruton won the American Chemical Society's Eli Lilly Award.
Read more about this topic: Joseph S. Fruton
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