Heterologous Biosynthesis of Type II Polyketide Products Using E. coli

Xiangyang Liu, Kangmin Hua, Dongxu Liu, Zhen Long Wu, Ying Wang, Haoran Zhang, Zixin Deng, Blaine A. Pfeifer, Ming Jiang

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


The heterologous biosynthesis of complex natural products has enabled access to polyketide, nonribosomal peptide, isoprenoid, and other compounds with wide-spanning societal value. Though several surrogate host systems exist, Escherichia coli is often a preferred choice due to its rapid growth kinetics and extensive molecular biology protocols. However, a persistent challenge to the utilization of E. coli has been the successful in vivo reconstitution of type II polyketide synthase (PKS) systems. In particular, gene expression of the ketosynthase (KS) components of the minimal PKS has consistently yielded insoluble protein products. In the following report, two type II PKS systems were functionally reconstituted in E. coli. The approach to do so relied upon the utilization of the native transcriptional coupling between the dimeric KS subunits, leading to soluble recombinant protein products and successful polyketide biosynthesis. Resulting strains produced 10 mg/L TW95c and 25 mg/L dehydrorabelomycin. Hence, the strategy offers a new option in the biosynthetic engineering efforts for the heterologous production of type II polyketide products using E. coli.

Original languageEnglish (US)
Pages (from-to)1177-1183
Number of pages7
JournalACS chemical biology
Issue number5
StatePublished - May 15 2020

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Medicine


Dive into the research topics of 'Heterologous Biosynthesis of Type II Polyketide Products Using E. coli'. Together they form a unique fingerprint.

Cite this