De novo biosynthesis of odd-chain fatty acids in yarrowia lipolytica enabled by modular pathway engineering
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Published version
Author(s)
Park, Young-kyoung
Ledesma-Amaro, Rodrigo
Nicaud, Jean-Marc
Type
Journal Article
Abstract
Microbial oils are regarded as promising alternatives to fossil fuels as concerns over environmental issues and energy production systems continue to mount. Odd-chain fatty acids (FAs) are a type of valuable lipid with various applications: they can serve as biomarkers, intermediates in the production of flavor and fragrance compounds, fuels, and plasticizers. Microorganisms naturally produce FAs, but such FAs are primarily even-chain; only negligible amounts of odd-chain FAs are generated. As a result, studies using microorganisms to produce odd-chain FAs have had limited success. Here, our objective was to biosynthesize odd-chain FAs de novo in Yarrowia lipolytica using inexpensive carbon sources, namely glucose, without any propionate supplementation. To achieve this goal, we constructed a modular metabolic pathway containing seven genes. In the engineered strain expressing this pathway, the percentage of odd-chain FAs out of total FAs was higher than in the control strain (3.86 vs. 0.84%). When this pathway was transferred into an obese strain, which had been engineered to accumulate large amounts of lipids, odd-chain fatty acid production was 7.2 times greater than in the control (0.05 vs. 0.36 g/L). This study shows that metabolic engineering research is making progress toward obtaining efficient cell factories that produce odd-chain FAs.
Date Issued
2020-01-22
Date Acceptance
2019-12-27
Citation
Frontiers in Bioengineering and Biotechnology, 2020, 7, pp.1-11
ISSN
2296-4185
Publisher
Frontiers Media
Start Page
1
End Page
11
Journal / Book Title
Frontiers in Bioengineering and Biotechnology
Volume
7
Copyright Statement
© 2020 Park, Ledesma-Amaro and Nicaud. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY)(http://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000511332900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Life Sciences & Biomedicine
Biotechnology & Applied Microbiology
Multidisciplinary Sciences
Science & Technology - Other Topics
odd-chain fatty acids
propionyl-CoA
Yarrowia lipolytica
metabolic engineering
Golden Gate assembly
synthetic biology
PYRUVATE-DEHYDROGENASE COMPLEX
OMEGA-3 EICOSAPENTAENOIC ACID
ESCHERICHIA-COLI
SUBSTRATE-SPECIFICITY
LIPID-ACCUMULATION
POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)
METABOLISM
IDENTIFICATION
CHEMICALS
INSIGHTS
Publication Status
Published
Article Number
ARTN 484
Date Publish Online
2020-01-22