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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1991-9-4
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pubmed:abstractText |
Cytochrome P-45014DM, which catalyzes lanosterol 14 alpha-demethylation, from pig liver microsomes was purified to a state of virtually homogeneous by gel electrophoresis. Its apparent monomeric molecular weight was estimated to be 53,000 by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and the amino-terminal amino acid sequence was Gly-Leu-Leu-Thr-Gly(Leu)-Asp-Leu-Leu-Gly-Ile. When reconstituted with NADPH-cytochrome P-450-reductase, the enzyme showed a high activity for lanosterol and 24,25-dihydrolanosterol 14 alpha-demethylation. Furthermore, the oxygenated intermediates of 24,25-dihydrolanosterol 14 alpha-demethylation, 32-hydroxy-24,25-dihydrolanosterol and 32-oxo-24,25-dihydrolanosterol, were converted to the 32-nor compound, 4,4-dimethylcholesta-8,14-dien-3 beta-ol, by the reconstituted enzyme system.
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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 |
Jul
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pubmed:issn |
0006-3002
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
1078
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
388-94
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:1859829-Amino Acid Sequence,
pubmed-meshheading:1859829-Animals,
pubmed-meshheading:1859829-Cytochrome P-450 Enzyme System,
pubmed-meshheading:1859829-Enzyme Activation,
pubmed-meshheading:1859829-Kinetics,
pubmed-meshheading:1859829-Microsomes, Liver,
pubmed-meshheading:1859829-Molecular Sequence Data,
pubmed-meshheading:1859829-Molecular Weight,
pubmed-meshheading:1859829-Oxidoreductases,
pubmed-meshheading:1859829-Spectrophotometry, Atomic,
pubmed-meshheading:1859829-Sterol 14-Demethylase,
pubmed-meshheading:1859829-Substrate Specificity,
pubmed-meshheading:1859829-Swine
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pubmed:year |
1991
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pubmed:articleTitle |
Purification and characterization of cytochrome P-45014DM (lanosterol 14 alpha-demethylase) from pig liver microsomes.
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pubmed:affiliation |
Kyoritsu College of Pharmacy, Tokyo, Japan.
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pubmed:publicationType |
Journal Article
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