Identification of an ancillary protein, YabF, required for activity of the KefC glutathione-gated potassium efflux system in Escherichia coli

被引:34
|
作者
Miller, S [1 ]
Ness, LS [1 ]
Wood, CM [1 ]
Fox, BC [1 ]
Booth, IR [1 ]
机构
[1] Univ Aberdeen, Inst Med Sci, Dept Mol & Cell Biol, Aberdeen AB25 2ZD, Scotland
基金
英国惠康基金;
关键词
D O I
10.1128/JB.182.22.6536-6540.2000
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
A new subunit, YabF, for the KefC K+ efflux system in Escherichia call has been identified. The subunit is required for maximum activity of KefC. Deletion of yabF reduces KefC activity 10-fold, and supply of YabF in trans restores activity. IS2 and IS10R insertions in yabF can be isolated as suppressors of KefC activity consequent upon the V427A and D264A KefC mutations.
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收藏
页码:6536 / 6540
页数:5
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