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A novel pyruvate kinase and its application in lactic acid production under oxygen deprivation in Corynebacterium glutamicum

机译:新型丙酮酸激酶及其在谷氨酸棒杆菌缺氧条件下乳酸生产中的应用

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摘要

BackgroundPyruvate kinase (Pyk) catalyzes the generation of pyruvate and ATP in glycolysis and functions as a key switch in the regulation of carbon flux distribution. Both the substrates and products of Pyk are involved in the tricarboxylic acid cycle, anaplerosis and energy anabolism, which places Pyk at a primary metabolic intersection. Pyks are highly conserved in most bacteria and lower eukaryotes. Corynebacterium glutamicum is an industrial workhorse for the production of various amino acids and organic acids. Although C. glutamicum was assumed to possess only one Pyk (pyk1, NCgl2008), NCgl2809 was annotated as a pyruvate kinase with an unknown role.
机译:背景丙酮酸激酶(Pyk)在糖酵解中催化丙酮酸和ATP的生成,并起着调节碳通量分布的关键开关的作用。 Pyk的底物和产物均参与三羧酸循环,动脉粥样硬化和能量合成代谢,这使Pyk处于主要的代谢交叉点。 Pyks在大多数细菌和低等真核生物中高度保守。谷氨酸棒杆菌是用于生产各种氨基酸和有机酸的工业动力。尽管假定谷氨酸棒杆菌仅具有一个Pyk(pyk1,NCgl2008),但NCgl2809被标注为具有未知作用的丙酮酸激酶。

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