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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1996-12-20
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pubmed:abstractText |
A three-dimensional model of the human class IV alcohol dehydrogenase has been calculated based upon the X-ray structure of the class I enzyme. As judged from the model, the substrate-binding site is wider than in class I, compatible with the differences in substrate specificities and the large difference in Km value for ethanol. Substrate docking performed for the class I structure and the class IV model show all-trans-retinol and 11-cis-retinol to bind better to the class IV enzyme. The calculations also indicate that 16-hydroxyhexadecanoic acid binds in a different manner for the two enzyme classes. A simulation of coenzyme-binding indicates that the adenine ring of the coenzyme might be differently bound in class IV than in class I, decreasing the interactions with Asp-223 which is compatible with the higher k(cat) values for class IV.
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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:month |
Oct
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pubmed:issn |
0014-5793
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
21
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pubmed:volume |
395
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
99-102
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8898073-Alcohol Dehydrogenase,
pubmed-meshheading:8898073-Amino Acid Sequence,
pubmed-meshheading:8898073-Binding Sites,
pubmed-meshheading:8898073-Coenzymes,
pubmed-meshheading:8898073-Humans,
pubmed-meshheading:8898073-Kinetics,
pubmed-meshheading:8898073-Liver,
pubmed-meshheading:8898073-Models, Molecular,
pubmed-meshheading:8898073-Protein Conformation,
pubmed-meshheading:8898073-Stomach,
pubmed-meshheading:8898073-Substrate Specificity
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pubmed:year |
1996
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pubmed:articleTitle |
Molecular modelling of human gastric alcohol dehydrogenase (class IV) and substrate docking: differences towards the classical liver enzyme (class I).
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pubmed:affiliation |
Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden.
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pubmed:publicationType |
Journal Article
|