ROLE OF RPOH, A HEAT-SHOCK REGULATOR PROTEIN, IN ESCHERICHIA-COLI CARBON STARVATION PROTEIN-SYNTHESIS AND SURVIVAL

被引：133

作者：

JENKINS, DE ^{[1
]}

AUGER, EA ^{[1
]}

MATIN, A ^{[1
]}

机构：

[1] STANFORD UNIV,MED CTR,SCH MED,DEPT MICROBIOL & IMMUNOL,SHERMAN FAIRCHILD SCI BLDG,D317,STANFORD,CA 94305

来源：

JOURNAL OF BACTERIOLOGY | 1991年 / 173卷 / 06期

关键词：

D O I：

10.1128/jb.173.6.1992-1996.1991

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Escherichia coli starvation proteins include several heat shock proteins whose induction by heat is controlled by the minor sigma factor, sigma-32. The level of sigma-32 increased in wild-type E. coli upon starvation, and three sigma-32-controlled heat shock proteins (DnaK, GroEL, and HtpG) were not induced during starvation in an isogenic DELTA-rpoH strain, which is unable to synthesize sigma-32. Thus, sigma-32 plays a role in the induction of these proteins during both heat shock and starvation. The DELTA-rpoH strain was more sensitive to starvation but could develop starvation-mediated cross protection against heat and oxidation.

引用

页码：1992 / 1996

页数：5

共 27 条

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