The NorR protein of Escherichia coli activates expression of the flavorubredoxin gene norV in response to reactive nitrogen species

被引:100
作者
Hutchings, MI [1 ]
Mandhana, N [1 ]
Spiro, S [1 ]
机构
[1] Univ E Anglia, Sch Biol Sci, Norwich NR4 7TJ, Norfolk, England
关键词
D O I
10.1128/JB.184.16.4640-4643.2002
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The Escherichia coli norVW genes encode a flavorubredoxin and NADH:(flavo)rubredoxin reductase, respectively, which are involved in nitric oxide detoxification under anaerobic growth conditions. Here it is shown that the norVW genes also have a role in protection against reactive nitrogen intermediates generated from nitroprusside. Transcription from the norV promoter is activated by the presence of nitroprusside in the growth medium; activation requires the product of a divergently transcribed regulatory gene, norR.
引用
收藏
页码:4640 / 4643
页数:4
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