DNA helicases: 'inching forward'

被引：90
|
作者：
Soultanas, P [1 ]
Wigley, DB [1 ]
机构：
[1] Univ Oxford, Sir William Dunn Sch Pathol, Oxford OX1 3RE, England
来源：
CURRENT OPINION IN STRUCTURAL BIOLOGY | 2000年 / 10卷 / 01期
关键词：
D O I：
10.1016/S0959-440X(99)00059-7
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：
Recently determined crystal structures of PcrA helicase complexed with a DNA substrate have revealed details of the helicase mechanism. PcrA and UvrD helicases have been shown to be functional as monomers, challenging previous suggestions that all helicases are required to be oligomeric. Crystal structures of the hexameric helicases RepA and T7 gene 4 explain the formation of hexameric assemblies from identical monomers with RecA-like folds, but their molecular mechanism remains elusive.
引用
收藏
页码：124 / 128
页数：5
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