REGULATION OF THE BIOSYNTHESIS OF AMINOACYL TRANSFER RNA-SYNTHETASES AND OF TRANSFER-RNA IN ESCHERICHIA-COLI .4. MUTANTS WITH INCREASED LEVELS OF LEUCYL-TRANSFER RNA OR SERYL-TRANSFER RNA-SYNTHETASE

被引:11
作者
THEALL, G
LOW, KB
SOLL, D
机构
[1] YALE UNIV,DEPT MOLEC BIOPHYS & BIOCHEM,NEW HAVEN,CT 06520
[2] YALE UNIV,DEPT THERAPEUT RADIOL,NEW HAVEN,CT 06520
来源
MOLECULAR & GENERAL GENETICS | 1979年 / 169卷 / 02期
关键词
D O I
10.1007/BF00271672
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Spontaneous revertants of a temperature-sensitive Escherichia coli strain harboring a thermolabile leucyl-tRNA synthetase and seryl-tRNA synthetase were selected for growth at 40°C. Among these, strains were found with increased levels of both thermolabile synthetases. Two distinct genetic loci were found responsible for enzyme overproduction. leuR, located near xyl, causes elevated levels of leucyl-tRNA synthetase; while serR, located near leu, causes elevated levels of seryl-tRNA synthetase. © 1979 Springer-Verlag.
引用
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页码:205 / 211
页数:7
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