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大肠杆菌中葡萄糖-6-磷酸脱氢酶、6-磷酸葡萄糖酸脱氢酶和6-磷酸葡萄糖酸脱水酶基因座的遗传定位

Genetic mapping of loci for glucose-6-phosphate dehydrogenase, gluconate-6-phosphate dehydrogenase, and gluconate-6-phosphate dehydrase in Escherichia coli.

作者信息

Peyru G, Fraenkel D G

出版信息

J Bacteriol. 1968 Apr;95(4):1272-8. doi: 10.1128/jb.95.4.1272-1278.1968.

Abstract

The loci on the Escherichia coli genome of mutations affecting the constitutive enzymes glucose-6-phosphate dehydrogenase (zwf) and gluconate-6-phosphate dehydrogenase (gnd), and the inducible enzyme gluconate-6-phosphate dehydrase (edd), were determined by conjugation and transduction experiments, chiefly by three-factor crosses. They are in the same region of the chromosome, and their order is gnd-his-(edd, zwf)-aroD; gnd and his are cotransduceable, as are zwf and edd. The position of gnd in Salmonella typhimurium was shown to be similar to that in E. coli.

摘要

通过接合和转导实验,主要是三因子杂交,确定了大肠杆菌基因组上影响组成型酶葡萄糖-6-磷酸脱氢酶(zwf)和葡萄糖酸-6-磷酸脱氢酶(gnd)以及诱导型酶葡萄糖酸-6-磷酸脱水酶(edd)的突变位点。它们位于染色体的同一区域,顺序为gnd-his-(edd,zwf)-aroD;gnd和his可共转导,zwf和edd也可共转导。已证明鼠伤寒沙门氏菌中gnd的位置与大肠杆菌中的相似。

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