缺乏核糖核酸酶I的鼠伤寒沙门氏菌突变体：对组氨酸突变体极性的影响。
Salmonella typhimurium mutants lacking ribonuclease I: effect on the polarity of histidine mutants.
作者信息
Bruni C B, Rechler M M, Martin R G
出版信息
J Bacteriol. 1973 Mar;113(3):1207-12. doi: 10.1128/jb.113.3.1207-1212.1973.
Abstract
Mutants of Salmonella typhimurium containing 1 to 2% of wild-type ribonuclease I activity were isolated. The rns mutation had no effect on the polarity of mutations in the S. typhimurium histidine operon. Even in the presence of an rns mutation, it was not possible to obtain strong suppressors of the polarity of two polar mutations in the his operon.
摘要
分离出了含有1%至2%野生型核糖核酸酶I活性的鼠伤寒沙门氏菌突变体。rns突变对鼠伤寒沙门氏菌组氨酸操纵子中突变的极性没有影响。即使存在rns突变，也无法获得组氨酸操纵子中两个极性突变极性的强抑制子。
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