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Engineering a novel biosynthetic pathway in Escherichia coli for production of renewable ethylene glycol

Journal Article · · Biotechnology and Bioengineering
DOI:https://doi.org/10.1002/bit.25717· OSTI ID:1401151
 [1];  [1];  [2];  [1];  [3];  [1]
  1. Department of Chemical Engineering Massachusetts Institute of Technology Cambridge Massachusetts 02139
  2. Department of Chemical Engineering Massachusetts Institute of Technology Cambridge Massachusetts 02139, Center for Industrial Biotechnology and Biocatalysis, Department for Biochemical and Microbial Technology Ghent University Ghent Belgium
  3. Department of Chemical Engineering Massachusetts Institute of Technology Cambridge Massachusetts 02139, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology Beijing University of Chemical Technology Beijing P. R. China
ABSTRACT

Ethylene glycol (EG) is an important commodity chemical with broad industrial applications. It is presently produced from petroleum or natural gas feedstocks in processes requiring consumption of significant quantities of non‐renewable resources. Here, we report a novel pathway for biosynthesis of EG from the renewable sugar glucose in metabolically engineered Escherichia coli . Serine‐to‐EG conversion was first achieved through a pathway comprising serine decarboxylase, ethanolamine oxidase, and glycolaldehyde reductase. Serine provision in E. coli was then enhanced by overexpression of the serine‐biosynthesis pathway. The integration of these two parts into the complete EG‐biosynthesis pathway in E. coli allowed for production of 4.1 g/L EG at a cumulative yield of 0.14 g‐EG/g‐glucose, establishing a foundation for a promising biotechnology. Biotechnol. Bioeng. 2016;113: 376–383. © 2015 Wiley Periodicals, Inc.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0008744
OSTI ID:
1401151
Journal Information:
Biotechnology and Bioengineering, Journal Name: Biotechnology and Bioengineering Journal Issue: 2 Vol. 113; ISSN 0006-3592
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English

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