THE PUTATIVE SIGMA FACTOR KATF HAS A CENTRAL ROLE IN DEVELOPMENT OF STARVATION-MEDIATED GENERAL RESISTANCE IN ESCHERICHIA-COLI

被引：291

作者：

MCCANN, MP ^{[1
]}

KIDWELL, JP ^{[1
]}

MATIN, A ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT MICROBIOL & IMMUNOL,SHERMAN FAIRCHILD SCI BLDG,STANFORD,CA 94305

来源：

JOURNAL OF BACTERIOLOGY | 1991年 / 173卷 / 13期

关键词：

D O I：

10.1128/jb.173.13.4188-4194.1991

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

KatF is required for the expression of some 32 carbon starvation proteins in Escherichia coli including 6 previously identified as Pex. Mutants with the katF gene survive carbon and nitrogen starvation poorly. Many of the KatF-regulated starvation proteins are common to those induced by other stresses, and the mutant failed to develop starvation-mediated cross protection to osmotic, oxidative, and heat stresses. Furthermore, thermal resistance was not induced in the mutant by heat preadaptation, and it exhibited an altered pattern of protein synthesis at elevated temperature. Thus, KatF is a major switch that controls the starvation-mediated resistant state in E. coli.

引用

页码：4188 / 4194

页数：7

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