Kim Pil, Laivenieks Maris, Vieille Claire, Zeikus J Gregory
Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, USA.
Appl Environ Microbiol. 2004 Feb;70(2):1238-41. doi: 10.1128/AEM.70.2.1238-1241.2004.
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.
在过表达琥珀酸放线杆菌磷酸烯醇式丙酮酸羧激酶(PEPCK)的大肠杆菌菌株中研究了琥珀酸发酵。在大肠杆菌K-12中,过表达PEPCK对琥珀酸发酵没有影响。相反,在磷酸烯醇式丙酮酸羧化酶突变型大肠杆菌菌株K-12 ppc::kan中,过表达PEPCK使琥珀酸产量提高了6.5倍。