Construction of engineered Escherichia coli for aerobic succinate production.
- Author:
Zhen KANG
1
;
Yanping GENG
;
Yuanyuan ZHANG
;
Qingsheng QI
Author Information
1. State Key Lab of Microbial Technology, Shandong University, Jinan 250100, China.
- Publication Type:Journal Article
- MeSH:
Aerobiosis;
Escherichia coli;
genetics;
metabolism;
Fermentation;
Gene Expression Regulation, Bacterial;
Gene Knockout Techniques;
Protein Engineering;
methods;
Recombinant Proteins;
biosynthesis;
genetics;
Succinic Acid;
metabolism
- From:
Chinese Journal of Biotechnology
2008;24(12):2081-2085
- CountryChina
- Language:Chinese
-
Abstract:
Based on carbon metabolic pathway analysis of Escherichia coli MG1655, an aerobic succinate fermentation platform was constructed by knocking out five genes (ptsG, poxB, pta, iclR and sdhA), which was named E. coli QZ1111. Flask cultivation results showed that E. coli QZ1111 could accumulate succinate with a concentration of 26.4 g/L under aerobic conditions. The byproduct acetate was only 2.3 g/L. The production ratio of succinate and acetate reached 11.5:1.
