Abstract
Succinate fermentation was investigated in Escherichia coli strains overexpressing Actinobacillus succinogenes phosphoenolpyruvate carboxykinase (PEPCK). In E. coli K-12, PEPCK overexpression had no effect on succinate fermentation. In contrast, in the phosphoenolpyruvate carboxylase mutant E. coli strain K-12 ppc::kan, PEPCK overexpression increased succinate production 6.5-fold.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Actinobacillus / enzymology*
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Actinobacillus / genetics*
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Culture Media
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Escherichia coli / enzymology*
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Escherichia coli / genetics
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Escherichia coli / growth & development
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Fermentation
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Genetic Engineering / methods
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Mutation
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Phosphoenolpyruvate Carboxykinase (ATP) / genetics
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Phosphoenolpyruvate Carboxykinase (ATP) / metabolism*
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Phosphoenolpyruvate Carboxylase / genetics
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Phosphoenolpyruvate Carboxylase / metabolism
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Succinic Acid / metabolism*
Substances
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Culture Media
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Succinic Acid
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Phosphoenolpyruvate Carboxylase
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Phosphoenolpyruvate Carboxykinase (ATP)