An axial met ligand at a type 1 copper site is preferable for fast electron transfer

被引：18

作者：

Harrison, MD ^{[1
]}

Dennison, C ^{[1
]}

机构：

[1] Univ Newcastle Upon Tyne, Sch Nat Sci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

CHEMBIOCHEM | 2004年 / 5卷 / 11期

关键词：

cupredoxin; electron transfer; metalloproteins; mutagenesis; type; 1; copper;

D O I：

10.1002/cbic.200400152

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：

Rapid fire! The replacement of the axial oxygen ligand at the type 1 copper site of stellacyanin with a weakly interacting thioether sulfur results in a fivefold increase in the electron self-exchange rate constant. This provides the first example of a type 1 copper site variant that exhibits increased reactivity and demonstrates that a site with an axial Met ligand is preferable for fast electron transfer, as shown.

引用

页码：1579 / 1581

页数：3

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