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产气克雷伯菌的谷氨酰胺合成酶:缺乏尿苷酰转移酶的glnD突变体的特性

Glutamine synthetase of Klebsiella aerogenes: properties of glnD mutants lacking uridylyltransferase.

作者信息

Foor F, Cedergren R J, Streicher S L, Rhee S G, Magasanik B

出版信息

J Bacteriol. 1978 May;134(2):562-8. doi: 10.1128/jb.134.2.562-568.1978.

Abstract

The glnD mutation of Klebsiella aerogenes is cotransducible by phage P1 with pan (requirement for pantothenate) and leads to a loss of uridylytransferase and uridylyl-removing enzyme, components of the glutamine synthetase adenylylation system. This defect results in an inability to deadenylylate glutamine synthetase rapidly and in a requirement for glutamine for normal growth. Suppression of the glnD mutation are located at the glutamine synthetase structural gene glnA.

摘要

产气克雷伯菌的glnD突变可被噬菌体P1与泛酸(泛酸需求)共转导,并导致尿苷酰转移酶和尿苷酰去除酶的缺失,这两种酶是谷氨酰胺合成酶腺苷酸化系统的组成部分。这种缺陷导致无法迅速使谷氨酰胺合成酶去腺苷酸化,并导致正常生长需要谷氨酰胺。glnD突变的抑制位于谷氨酰胺合成酶结构基因glnA处。

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