Lead (II) binding to thionein

被引：0

作者：

He, WG ^{[1
]}

Chu, DY ^{[1
]}

Yang, JY ^{[1
]}

Yao, DF ^{[1
]}

Shao, MC ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 1999年 / 10卷 / 01期

关键词：

thionein; lead (II); UV spectra; circular dichroism; multiple coordination;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lead (II)-binding properties of rabbit liver thionein 2 (apo-MT2) have been studied. Two kinds of complexes, Pb-7-MT and Pb-7-MT', are observed upon the binding of Pb2+ to ape-MT at different pH. From their characteristic peaks in UV and CD spectra, it is deduced that Pb2+ in Pb-7-MT is coordinated by four sulfhydryl groups in Td microsymmetry, while multiple coordination types including two-coordination maybe present in Pb-7-MT'.

引用

页码：87 / 90

页数：4

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