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Heterologous Biosynthesis of Type II Polyketide Products Using E. coli.

Abstract：

: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.

journal_name

ACS Chem Biol

journal_title

ACS chemical biology

authors

Liu X,Hua K,Liu D,Wu ZL,Wang Y,Zhang H,Deng Z,Pfeifer BA,Jiang M

doi

10.1021/acschembio.9b00827

subject

Has Abstract

pub_date

2020-05-15 00:00:00

pages

1177-1183

issue

5

eissn

1554-8929

issn

1554-8937

journal_volume

15

pub_type

杂志文章

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