Engineering an Alcohol-Forming Fatty Acyl-CoA Reductase for Aldehyde and Hydrocarbon Biosynthesis in Saccharomyces cerevisiae

Bibliographic Details
Title: Engineering an Alcohol-Forming Fatty Acyl-CoA Reductase for Aldehyde and Hydrocarbon Biosynthesis in Saccharomyces cerevisiae
Authors: Jee Loon Foo, Bahareh Haji Rasouliha, Adelia Vicanatalita Susanto, Susanna Su Jan Leong, Matthew Wook Chang
Source: Frontiers in Bioengineering and Biotechnology, Vol 8 (2020)
Publisher Information: Frontiers Media S.A., 2020.
Publication Year: 2020
Collection: LCC:Biotechnology
Subject Terms: synthetic biology, metabolic engineering, protein engineering, de novo biosynthesis, biofuels, aldehydes, Biotechnology, TP248.13-248.65
More Details: Aldehydes are a class of highly versatile chemicals that can undergo a wide range of chemical reactions and are in high demand as starting materials for chemical manufacturing. Biologically, fatty aldehydes can be produced from fatty acyl-CoA by the action of fatty acyl-CoA reductases. The aldehydes produced can be further converted enzymatically to other valuable derivatives. Thus, metabolic engineering of microorganisms for biosynthesizing aldehydes and their derivatives could provide an economical and sustainable platform for key aldehyde precursor production and subsequent conversion to various value-added chemicals. Saccharomyces cerevisiae is an excellent host for this purpose because it is a robust organism that has been used extensively for industrial biochemical production. However, fatty acyl-CoA-dependent aldehyde-forming enzymes expressed in S. cerevisiae thus far have extremely low activities, hence limiting direct utilization of fatty acyl-CoA as substrate for aldehyde biosynthesis. Toward overcoming this challenge, we successfully engineered an alcohol-forming fatty acyl-CoA reductase for aldehyde production through rational design. We further improved aldehyde production through strain engineering by deleting competing pathways and increasing substrate availability. Subsequently, we demonstrated alkane and alkene production as one of the many possible applications of the aldehyde-producing strain. Overall, by protein engineering of a fatty acyl-CoA reductase to alter its activity and metabolic engineering of S. cerevisiae, we generated strains with the highest reported cytosolic aliphatic aldehyde and alkane/alkene production to date in S. cerevisiae from fatty acyl-CoA.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2296-4185
Relation: https://www.frontiersin.org/article/10.3389/fbioe.2020.585935/full; https://doaj.org/toc/2296-4185
DOI: 10.3389/fbioe.2020.585935
Access URL: https://doaj.org/article/f9c13df89b434bf7ba1d5c2a8fad8f66
Accession Number: edsdoj.f9c13df89b434bf7ba1d5c2a8fad8f66
Database: Directory of Open Access Journals
More Details
ISSN:22964185
DOI:10.3389/fbioe.2020.585935
Published in:Frontiers in Bioengineering and Biotechnology
Language:English