Adaptive laboratory evolution of tolerance to dicarboxylic acids in Saccharomyces cerevisiae.
Adaptive laboratory evolution
Dicarboxylic acid
Multidrug resistance transporter
Journal
Metabolic engineering
ISSN: 1096-7184
Titre abrégé: Metab Eng
Pays: Belgium
ID NLM: 9815657
Informations de publication
Date de publication:
12 2019
12 2019
Historique:
received:
16
07
2019
revised:
19
09
2019
accepted:
19
09
2019
pubmed:
25
9
2019
medline:
23
4
2020
entrez:
25
9
2019
Statut:
ppublish
Résumé
Improving the growth phenotypes of microbes in high product concentrations is an essential design objective in the development of robust cell factories. However, the limited knowledge regarding tolerance mechanisms makes rational design of such traits complicated. Here, adaptive laboratory evolution was used to explore the tolerance mechanisms that Saccharomyces cerevisiae can evolve in the presence of inhibiting concentrations of three dicarboxylic acids: glutaric acid, adipic acid and pimelic acid. Whole-genome sequencing of tolerant mutants enabled the discovery of the genetic changes behind tolerance and most mutations could be linked to the up-regulation of multidrug resistance transporters. The amplification of QDR3, in particular, was shown to confer tolerance not only to the three dicarboxylic acids investigated, but also towards muconic acid and glutaconic acid. In addition to increased acid tolerance, QDR3 overexpression also improved the production of muconic acid in the context of a strain engineered for producing this compound.
Identifiants
pubmed: 31550508
pii: S1096-7176(19)30282-4
doi: 10.1016/j.ymben.2019.09.008
pii:
doi:
Substances chimiques
Dicarboxylic Acids
0
Saccharomyces cerevisiae Proteins
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
130-141Informations de copyright
Copyright © 2019 International Metabolic Engineering Society. Published by Elsevier Inc. All rights reserved.