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一种类酶合成聚合物实现了10倍的催化加速。

Catalytic accelerations of 10-fold by an enzyme-like synthetic polymer.

作者信息

Kiefer H C, Congdon W I, Scarpa I S, Klotz I M

机构信息

Biochemistry Division, Department of Chemistry, Northwestern University, Evanston, Illinois 60201.

出版信息

Proc Natl Acad Sci U S A. 1972 Aug;69(8):2155-9. doi: 10.1073/pnas.69.8.2155.

Abstract

A synthetic polymer, polyethyleneimine containing dodecyl (C(12)H(25))-chains for binding sites and imidazole moieties for functional catalytic groups, catalyzes the hydrolysis of phenolic sulfate esters by a two-step mechanism resembling that of the corresponding natural enzyme. Quantitative rate studies give kinetic parameters that show that the polymer (synzyme) accelerates the rate 10(12)-fold compared to unbound imidazole, and 10(2)-fold compared to a type IIA aryl sulfatase enzyme.

摘要

一种合成聚合物,即含有十二烷基(C(12)H(25))链作为结合位点和咪唑部分作为功能性催化基团的聚乙烯亚胺,通过一种类似于相应天然酶的两步机制催化酚硫酸酯的水解。定量速率研究给出的动力学参数表明,与未结合的咪唑相比,该聚合物(合成酶)将反应速率提高了10^12倍,与IIA型芳基硫酸酯酶相比提高了10^2倍。

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本文引用的文献

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MECHANISM OF ACTION OF PROTEOLYTIC ENZYMES.蛋白水解酶的作用机制
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The type II arylsulphatases of the red kangaroo.红袋鼠的II型芳基硫酸酯酶
Biochim Biophys Acta. 1971 Jan 13;227(1):129-38. doi: 10.1016/0005-2744(71)90174-4.

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