转录对大肠杆菌K-12色氨酸操纵子内RecBC和RecF介导的重组的影响。
Effect of transcription on RecBC- and RecF-mediated recombination within the tryptophan operon of Escherichia coli K-12.
作者信息
Cosloy S D
出版信息
J Bacteriol. 1979 Sep;139(3):1079-81. doi: 10.1128/jb.139.3.1079-1081.1979.
Abstract
Recombination between tryptophan gene mutations within the trp operon was determined among transductants for an outside linked cysB marker under conditions of repression and derepression. These studies, carried out with recipient strains utilizing the RecBC or RecF pathway, or a combination of these pathways of recombination, demonstrate that transcription of trp genes as regulated by the trp repressor has no significant effect on RecBC- or RecF-mediated recombination within the trp operon.
摘要
在阻遏和去阻遏条件下，测定了色氨酸操纵子内色氨酸基因突变之间的重组情况，这些重组发生在与外部连锁的半胱氨酸B标记的转导子之间。这些研究是在利用RecBC或RecF重组途径或这些重组途径组合的受体菌株中进行的，结果表明，由色氨酸阻遏物调控的色氨酸基因转录对色氨酸操纵子内RecBC或RecF介导的重组没有显著影响。
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