Studies of the Escherichia coli Rsd-σ70 complex

被引:32
作者
Westblade, LF [1 ]
Ilag, LL
Powell, AK
Kolb, A
Robinson, CV
Busby, SJW
机构
[1] Univ Birmingham, Sch Biosci, Birmingham B15 2TT, W Midlands, England
[2] Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England
[3] Inst Pasteur, Dept Microbiol Fondamentale & Med, F-75724 Paris, France
基金
英国生物技术与生命科学研究理事会; 英国惠康基金;
关键词
Escherichia coli; transcription initiation; sigma-factors; anti-sigma factors; stoichiometry;
D O I
10.1016/j.jmb.2003.11.004
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
Escherichia coli Rsd protein was previously identified on the basis of its binding to the RNA polymerase sigma(70) subunit. The Rsd-sigma(70) complex has been studied using different methods. Our data show that Rsd associates with sigma(70) to form a complex with a stoichiometry of 1:1. Alanine scanning and deletion mutagenesis were used to locate regions of sigma(70) that are required for the formation of the Rsd-sigma(70) complex. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:685 / 692
页数:8
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