Enzymes as synthetic catalysts: mechanistic and active-site considerations of natural and modified chymotrypsin

…, WJ Hennen, JL Lalonde, JA Bibbs…

Index: West, J. Blair; Hennen, William J.; Lalonde, James L.; Bibbs, Jeffrey A.; Zhong, Ziyang; Meyer Jr., Edgar F.; Wong, Chi-Huey Journal of the American Chemical Society, 1990 , vol. 112, # 13 p. 5313 - 5320

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Citation Number: 53

Abstract

Abstract: This paper describes the mechanistic investigation of a-chymotrypsin and [Met, 9z- sulfoxide]-a-chymotrypsin-catalyzed peptide synthesis in a kinetically controlled process (Le., aminolysis) and the relative stabilities of both enzymes in different conditions. Partitioning parameters for various nucleophiles (including D-and L-amino acids) competing with water for the acyl enzyme intermediate were determined. These parameters provide ...