Hyperfine evidence of strong double exchange in multimetallic {[Fe4S4]-Fe} active center of Escherichia coli sulfite reductase

被引：23

作者：

Belinsky, MI

机构：

[1] School of Chemistry, Sackler Faculty of Extract Sciences, Tel Aviv University

来源：

JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY | 1996年 / 1卷 / 02期

关键词：

D O I：

10.1007/s007750050041

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：

The spin-coupling model of the {[Fe4S4]-Fe} center of the active site of sulfite reductase, which includes the Heisenberg exchange and double-exchange interactions, explains the peculiarities of the induced paramagnetism. The effective hyperfine constants of the SiR(-1)-NO complex are explained in the model with maximal pair spins S-12=S-34=9/2 in the ground state formed by strong double exchange.

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页码：186 / 188

页数：3

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