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
收藏
页码：87 / 90
页数：4
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