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Overexpression of Saccharomyces cerevisiae mannitol dehydrogenase gene (YEL070w) in glycerol synthesis-deficient S. Cerevisiae mutant

Paper ID Volume ID Publish Year Pages File Format Full-Text
18502 42725 2006 6 PDF Available
Title
Overexpression of Saccharomyces cerevisiae mannitol dehydrogenase gene (YEL070w) in glycerol synthesis-deficient S. Cerevisiae mutant
Abstract

Saccharomyces cerevisiae ORF YEL070w encodes mannitol dehydrogenase (MDH), as confirmed by the present results. Six highly homologous peptide motifs were identified in the amino acid sequence of the YEL070w product by comparison with those of microbial MDH proteins. In particular, a typical coenzyme-binding site and an active site that are specific to enzymes participating in the dehydrogenation of alcohols groups were identified in these homologous peptide motifs. S. cerevisiae cells overexpressing YEL070w exhibited MDH activity showing high substrate specificity for mannitol and a coenzyme requirement of NAD+ in the oxidation reaction. The salt-sensitive phenotype of S. cerevisiae glycerol-synthesis-deficient mutant (ΔGPD1 and ΔGPD2) was complemented and tolerance to several stressors (i.e., heat and sugar) was observed with YEL070w expression.

Keywords
Yeast; Mannitol dehydrogenase; Salt tolerance; Saccharomyces cerevisiae
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Overexpression of Saccharomyces cerevisiae mannitol dehydrogenase gene (YEL070w) in glycerol synthesis-deficient S. Cerevisiae mutant
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 39, Issue 4, 2 August 2006, Pages 654–659
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us