HYDROLYSIS OF 4-NITROPHENYL PHOSPHATE BY (AMINO ACIDATO)ZINC COMPLEXES

被引：5
|
作者：
VILADKAR, S
AMALUDDIN, K
NATH, M
机构：
来源：
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1993年 / 66卷 / 10期
关键词：
D O I：
10.1246/bcsj.66.2922
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Simple zinc complexes of glycine, histidine, and cysteine are proposed as evolutionary models for hydrolytic enzymes. Catalytic activity of (amino acidato)zinc complexes has been studied towards hydrolysis of 4-nitrophenyl phosphate at 40-degrees-C over the pH range 5.0-10.0 by monitoring release of p-nitrophenol at 405 nm. Detailed kinetic investigations on hydrolysis of ester catalyzed by zinc complexes are discussed through formation of (amino acidato)zinc-substrate complex. Mechanistic and evolutionary aspect of this study are discussed in relation to the esterase property of the zinc metalloenzymes.
引用
收藏
页码：2922 / 2926
页数：5
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