Thermodynamic influences on the fidelity of iron-sulphur cluster formation in proteins

被引：6

作者：

Armstrong, FA ^{[1
]}

Williams, RJP ^{[1
]}

机构：

[1] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England

来源：

FEBS LETTERS | 1999年 / 451卷 / 02期

基金：

英国工程与自然科学研究理事会; 英国生物技术与生命科学研究理事会;

关键词：

iron-sulfur; ferredoxin; homeostasis; cluster;

D O I：

10.1016/S0014-5793(99)00545-1

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：

In an organism, two thermodynamic factors are important in ensuring that homometallic [4Fe-4S] cubane clusters are formed in preference to clusters containing heterometals such as Zn or Cu. These are the electronic resonance stabilisation, which boosts the binding of Fe(II) within an Fe-S cluster relative to its normally low position in the Irving-Williams order, and attenuation of the cytoplasmic concentrations of competing metals such as Zn or Cu by specific ligands. (C) 1999 Federation of European Biochemical Societies.

引用

页码：91 / 94

页数：4

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