Antibody-catalyzed decarboxylation and aldol reactions using a primary amine molecule as a functionalized small nonprotein component
作者:Fumihiro Ishikawa、Kouki Uno、Masao Nishikawa、Takeshi Tsumuraya、Ikuo Fujii
DOI:10.1016/j.bmc.2013.09.015
日期:2013.11
Catalytic antibody 27C1 bears binding sites for both a substrate-and a functionalized small nonprotein component in the active site. We investigated the possibility of exploiting imine and enamine intermediates using a primary amine molecule into the active site of antibody 27C1. The antibody catalyzed beta-keto acid decarboxylation with a rate enhancement (k(cat)/K-m/k(uncat)) of 140,000, as well as highly regioselective cross-aldol reactions of ketones and p-nitrobenzaldehyde. These studies provide new strategies for the generation of catalytic antibodies possessing binding sites for functionalized components. (C) 2013 Elsevier Ltd. All rights reserved.