THE TYROSINE REPRESSOR NEGATIVELY REGULATES AROH EXPRESSION IN ESCHERICHIA-COLI

被引：18

作者：

MUDAY, GK ^{[1
]}

JOHNSON, DI ^{[1
]}

SOMERVILLE, RL ^{[1
]}

HERRMANN, KM ^{[1
]}

机构：

[1] PURDUE UNIV,DEPT BIOCHEM,W LAFAYETTE,IN 47907

来源：

JOURNAL OF BACTERIOLOGY | 1991年 / 173卷 / 12期

关键词：

D O I：

10.1128/JB.173.12.3930-3932.1991

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The levels of the tryptophan-sensitive isoenzyme of 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase of Escherichia coli, encoded by the aroH gene, were elevated in tyrR and/or trpR mutants. The effect of tyrR and trpR lesions on aroH expression was confirmed by using a lacZ reporter system. The mutational elimination of either repressor led to a threefold increase in beta-galactosidase.

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页码：3930 / 3932

页数：3

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