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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Bioresource Technolo...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Bioresource Technology
Article . 2013 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Production of 2,3-butanediol by engineered Saccharomyces cerevisiae

Authors: Soo-Jung, Kim; Seung-Oh, Seo; Yong-Su, Jin; Jin-Ho, Seo;

Production of 2,3-butanediol by engineered Saccharomyces cerevisiae

Abstract

In order to produce 2,3-butanediol (2,3-BD) with a high titer, it is necessary to engineer Saccharomyces cerevisiae by deleting the competing pathway and overexpressing the 2,3-BD biosynthetic pathway. A pyruvate decarboxylase (Pdc)-deficient mutant was constructed and evolved for rapid glucose consumption without ethanol production. Genome re-sequencing of the evolved strain (SOS4) revealed a point mutation (A81P) in MTH1 coding for a transcriptional regulator involved in glucose sensing, unlike the previously reported Pdc-deficient mutant which had internal deletion in MTH1. When alsS and alsD genes from Bacillus subtilis, and endogenous BDH1 gene were overexpressed in SOS4, the resulting strain (BD4) not only produced 2,3-BD efficiently, but also consumed glucose faster than the parental strain. In fed-batch fermentation with optimum aeration, 2,3-BD concentration increased up to 96.2 g/L. These results suggest that S. cerevisiae might be a promising host for producing 2,3-BD for industrial applications.

Keywords

Time Factors, Base Sequence, Genotype, Carboxy-Lyases, Molecular Sequence Data, Saccharomyces cerevisiae, Sequence Analysis, DNA, Acetolactate Synthase, Industrial Microbiology, Glucose, Genes, Bacterial, Fermentation, Mutation, Point Mutation, Butylene Glycols, Genetic Engineering, Pyruvate Decarboxylase, Gene Deletion, Bacillus subtilis, Plasmids

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Powered by OpenAIRE graph
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
100
Top 10%
Top 10%
Top 1%