Over-expression of α-bisabolene by metabolic engineering of Yarrowia lipolytica employing a golden gate DNA assembly toolbox
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Published version
Author(s)
El-Sharoud, Walid M
Zalma, Samar A
Rios-Solis, Leonardo
Ledesma-Amaro, Rodrigo
Type
Journal Article
Abstract
Yarrowia lipolytica is a modern workhorse for biotechnology that is amenable to genetic manipulations and can produce high levels of various enzymes. The present study was designed to engineer Y. lipolytica for the overexpression of α-bisabolene, a valuable biofuel precursor and pharmaceutical, making use of this yeast's ability to accumulate lipids, and with the use of a golden gate DNA assembly (GG) toolbox. By transforming Y. lipolytica with a GG genetic construct involving truncated 3-hydroxy-3-methyl-glutaryle coenzyme A reductase (tHMG) and α-bisabolene synthase (Bis) genes controlled by the strong TEF promoter and Lip2 terminator, the engineered yeast was able to produce 489 mg l−1 of α-bisabolene. This was increased to 816 mg l−1 by transforming a lipid-over-accumulating Y. lipolytica strain with the same genetic construct. Higher production titers of up to 1243 mg l−1 could be also achieved by varying the culture conditions of the transformed strains.
Date Issued
2023
Date Acceptance
2022-12-23
Citation
Biotechnology Notes, 2023, 4, pp.14-19
ISSN
2665-9069
Publisher
Elsevier BV
Start Page
14
End Page
19
Journal / Book Title
Biotechnology Notes
Volume
4
Copyright Statement
© 2022 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC
BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Identifier
http://dx.doi.org/10.1016/j.biotno.2022.12.005
Publication Status
Published
Date Publish Online
2022-12-24