H-NS and RpoS regulate emergence of Lac Ara(+) mutants of Escherichia coli MCS2

被引：41

作者：

GomezGomez, JM ^{[1
]}

Blazquez, J ^{[1
]}

Baquero, F ^{[1
]}

Martinez, JL ^{[1
]}

机构：

[1] CSIC,BANCO CELULAS,CTR NACL BIOTECHNOL,E-28049 MADRID,SPAIN

来源：

JOURNAL OF BACTERIOLOGY | 1997年 / 179卷 / 14期

关键词：

D O I：

10.1128/jb.179.14.4620-4622.1997

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Two master growth-phase regulatory proteins, H-NS and sigma(S), are involved in the formation of araB-lacZ fusion clones of Escherichia coli MCS2. The stationary-phase sigma factor RpoS is strictly required for the appearance of such mutants, whereas the histone-like protein H-NS represses their emergence. Our results support the idea that genetic changes leading do adaptive mutation in this model system are regulated by physiological signal transduction networks.

引用

页码：4620 / 4622

页数：3

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