Heterologous Expression of Aspergillus oryzae Xylose Reductase and Xylitol Dehydrogenase Genes Facilitated Xylose Utilization in the Yeast Saccharomyces cerevisiae
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作者:
Kaneda, Jitsuro
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Tohoku Univ, Dept Bioind Informat & Genom, Grad Sch Agr Sci, Aoba Ku, Sendai, Miyagi 9818555, JapanTohoku Univ, Dept Bioind Informat & Genom, Grad Sch Agr Sci, Aoba Ku, Sendai, Miyagi 9818555, Japan
Kaneda, Jitsuro
[1
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Sasaki, Kenji
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Tohoku Univ, Dept Bioind Informat & Genom, Grad Sch Agr Sci, Aoba Ku, Sendai, Miyagi 9818555, JapanTohoku Univ, Dept Bioind Informat & Genom, Grad Sch Agr Sci, Aoba Ku, Sendai, Miyagi 9818555, Japan
Sasaki, Kenji
[1
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Gomi, Katsuya
[1
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Shintani, Takahiro
[1
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[1] Tohoku Univ, Dept Bioind Informat & Genom, Grad Sch Agr Sci, Aoba Ku, Sendai, Miyagi 9818555, Japan
The cDNA encoding a putative xylose reductase (xyrA) from Aspergillus oryzae was cloned and coexpressed in the yeast Saccharomyces cerevisiae with A. oryzae xylitol dehydrogenase cDNA (xdhA). XyrA exhibited NADPH-dependent xylose reductase activity. The S. cerevisiae strain, overexpressing the xyrA, xdhA, endogenous XKS1, and TAL1 genes, grew on xylose as sole carbon source, and produced ethanol.