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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1987-11-12
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pubmed:abstractText |
Xanthine dehydrogenase (EC 1.2.1.37) was purified approximately 1000-fold from liver homogenates of adult male Sprague-Dawley rats. Enzyme recovery was good (greater than 20% of the starting activity was obtained), and the homogeneously pure enzyme had a molecular mass of approximately 300,000 Da. The purified protein exhibited a specific activity of 2470 units/mg protein and spectral properties identical to those of the best preparations of this enzyme reported by other investigators. Routine preparations of this enzyme also possess higher dehydrogenase:oxidase ratios (typically between 5 and 6) than do other xanthine dehydrogenase preparations so far reported in the literature. Maximum dehydrogenase:oxidase ratios, greater than 10, could be obtained from this procedure if only peak dehydrogenase fractions from the chromatography columns were saved. The present small-scale purification method, which can be completed in 48-60 h, utilizes ammonium sulfate fractionation, Sephadex G-200 column chromatography, Blue Dextran-Sepharose column chromatography, and preparative gel electrophoresis.
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pubmed:grant | |
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:month |
Oct
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pubmed:issn |
0003-9861
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
258
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
219-25
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:3478001-Animals,
pubmed-meshheading:3478001-Chromatography,
pubmed-meshheading:3478001-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:3478001-Fractional Precipitation,
pubmed-meshheading:3478001-Ketone Oxidoreductases,
pubmed-meshheading:3478001-Liver,
pubmed-meshheading:3478001-Male,
pubmed-meshheading:3478001-Molecular Weight,
pubmed-meshheading:3478001-Rats,
pubmed-meshheading:3478001-Rats, Inbred Strains,
pubmed-meshheading:3478001-Spectrophotometry,
pubmed-meshheading:3478001-Xanthine Dehydrogenase,
pubmed-meshheading:3478001-Xanthine Oxidase
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pubmed:year |
1987
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pubmed:articleTitle |
Purification of xanthine dehydrogenase from rat liver: a rapid procedure with high enzyme yields.
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pubmed:affiliation |
Division of Environmental Health, School of Public Health, University of Minnesota, Minneapolis 55455.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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