Substrate-selective mechanisms in biocatalysis demonstrated with a versatile and efficient aldolase antibody
作者:Hagit Shulman、Ehud Keinan
DOI:10.1016/s0960-894x(99)00292-9
日期:1999.7
A structure-activity relationship study with a series of aldol substrates shows that the mechanism of the antibody 38C2-catalyzed retrograde aldol reaction depends on the nature of the substrate With electron-deficient substrates an early deprotonation precedes the C-C bond cleavage while with electron-rich substrates the catalytic mechanism involves an initial C-C bond cleavage leading to a positively charged intermediate. (C) 1999 Elsevier Science Ltd. All rights reserved.