Source:http://linkedlifedata.com/resource/pubmed/id/20834176
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
2010-9-30
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pubmed:abstractText |
The xylitol dehydrogenase gene (xdh) of Bacillus pallidus was cloned and overexpressed in Escherichia coli using pQE60 vector, for the first time. The open reading frame of 759 bp encoded a 253 amino acid protein with a calculated molecular mass of 27,333 Da. The recombinant xylitol dehydrogenase (XDH) was purified to homogeneity by three-step column chromatography, producing a single SDS-PAGE band of 28 kDa apparent molecular mass. The enzyme exhibited maximal activity at 55 °C in glycine-NaOH buffer pH 11.0, with 66% of initial enzyme activity retained after incubation at 40 °C for 1 h. In further application of the recombinant bacterium to L-xylulose production from xylitol (initial concentration 5%) using a resting cell reaction, 35% L-xylulose was produced within 24 h. This result indicates that this recombinant XDH is applicable in the large-scale production of L-xylulose.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
1347-6947
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
74
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1807-13
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pubmed:dateRevised |
2011-8-11
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pubmed:meshHeading |
pubmed-meshheading:20834176-Bacillus,
pubmed-meshheading:20834176-Cloning, Molecular,
pubmed-meshheading:20834176-D-Xylulose Reductase,
pubmed-meshheading:20834176-Escherichia coli,
pubmed-meshheading:20834176-Industrial Microbiology,
pubmed-meshheading:20834176-Kinetics,
pubmed-meshheading:20834176-Xylulose
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pubmed:year |
2010
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pubmed:articleTitle |
Cloning and overexpression of the xylitol dehydrogenase gene from Bacillus pallidus and its application to L-xylulose production.
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pubmed:affiliation |
Rare Sugar Research Center, Kagawa University, Kagawa, Japan. goro@ag.kagawa-u.ac.jp
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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