Thiosubstrates of cholinesterases of different origin

被引:3
|
作者
Rozengart, E. V. [1 ]
Basova, N. E. [1 ]
机构
[1] Russian Acad Sci, IM Sechenov Evolutionary Physiol & Biochem Inst, St Petersburg 196140, Russia
关键词
comparative enzymology; cholinesterase; substrate specificity; thiosubstrates;
D O I
10.1134/S0022093008010027
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Review of the own and literature data on investigation of substrate specificity of different cholinesterases using thiosubstrates is presented. Dependence of cholinesteratic hydrolysis parameters on various elements of their structure-the acyl part, alkyl "bridge" between ester atom and onium group, and the molecule ammonium grouping-is considered using 44 thioesters in total. A comparative enzymological analysis of the substrate specificity is performed with use of thiocholine esters of acetic, propionic, and butyric acids for 40 cholinesterase preparations of mammals, insects, mollusks, and plants.
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页码:12 / 23
页数:12
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