2-ISOPROPYLMALATE SYNTHETASE AND ENGINEERING BACTERIA AND APPLICATION THEREOF

The invention relates to a 2-isopropyl malate synthase, a genetically engineered bacterium for producing L-leucine and application thereof and belongs to the field of metabolic engineering. The genetically engineered bacterium is obtained by overexpressing an isopropyl malate synthase coding gene le...

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Hauptverfasser: Li, Ziyi, Lu, Nan, Han, Shibao, Li, Yanjun, Zhang, Chenglin, Wang, Zishen, Xu, Hao, Zhang, Yu, Li, Yingzi, Zhu, Fuzhou, Xu, Qingyang, Dong, Xierong
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creator Li, Ziyi
Lu, Nan
Han, Shibao
Li, Yanjun
Zhang, Chenglin
Wang, Zishen
Xu, Hao
Zhang, Yu
Li, Yingzi
Zhu, Fuzhou
Xu, Qingyang
Dong, Xierong
description The invention relates to a 2-isopropyl malate synthase, a genetically engineered bacterium for producing L-leucine and application thereof and belongs to the field of metabolic engineering. The genetically engineered bacterium is obtained by overexpressing an isopropyl malate synthase coding gene leuAM for relieving feedback inhibition by L-leucine, an acetohydroxy acid synthase coding gene ilvBNM for relieving feedback inhibition by L-isoleucine, a 3-isopropyl malate dehydrogenase coding gene leuB and a 3-isopropyl malate dehydratase coding gene leuCD in host cells. The genetically engineered bacterium for producing the L-leucine is free from nutritional deficiency, rapid in growth, short in fermentation period, high in yield and high in conversion rate.
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subjects BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
title 2-ISOPROPYLMALATE SYNTHETASE AND ENGINEERING BACTERIA AND APPLICATION THEREOF
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