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Category:GO:0000254 ! C-4 methylsterol oxidase activity
name: C-4 methylsterol oxidase activity
namespace: molecular_function
def: "Catalysis of the reaction: 4,4-dimethyl-5-alpha-cholesta-8,24-dien-3-beta-ol + NAD(P)H + H(+) + O2 = 4-beta-hydroxymethyl-4-alpha-methyl-5-alpha-cholesta-8,24-dien-3-beta-ol + NAD(P)+ + H2O." [EC:1.14.13.72, PMID:9811880]
comment: Note that zymosterol is cholesta-8,24-dien-3-ol.
synonym: "4,4-dimethyl-5alpha-cholest-7-en-3beta-ol,hydrogen-donor:oxygen oxidoreductase (hydroxylating)" EXACT [EC:1.14.13.72]
synonym: "4,4-dimethyl-5alpha-cholest-7-en-3beta-ol,NAD(P)H:oxygen oxidoreductase (hydroxylating)" EXACT [EC:1.14.13.72]
synonym: "4-methylsterol oxidase activity" EXACT []
synonym: "methylsterol hydroxylase activity" RELATED []
synonym: "methylsterol monooxygenase activity" RELATED []
xref: EC:1.14.13.72
xref: MetaCyc:1.14.13.72-RXN
xref: Reactome:REACT_10059 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Homo sapiens"
xref: Reactome:REACT_10070 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Homo sapiens"
xref: Reactome:REACT_104089 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Danio rerio"
xref: Reactome:REACT_104631 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Oryza sativa"
xref: Reactome:REACT_105610 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Taeniopygia guttata"
xref: Reactome:REACT_105653 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Bos taurus"
xref: Reactome:REACT_107576 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Dictyostelium discoideum"
xref: Reactome:REACT_112865 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Xenopus tropicalis"
xref: Reactome:REACT_115505 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Xenopus tropicalis"
xref: Reactome:REACT_28712 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Mus musculus"
xref: Reactome:REACT_29355 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Sus scrofa"
xref: Reactome:REACT_31445 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Mus musculus"
xref: Reactome:REACT_32207 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Sus scrofa"
xref: Reactome:REACT_32840 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Saccharomyces cerevisiae"
xref: Reactome:REACT_76969 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Oryza sativa"
xref: Reactome:REACT_79112 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Schizosaccharomyces pombe"
xref: Reactome:REACT_83222 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Gallus gallus"
xref: Reactome:REACT_84661 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Schizosaccharomyces pombe"
xref: Reactome:REACT_84707 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Arabidopsis thaliana"
xref: Reactome:REACT_85609 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Taeniopygia guttata"
xref: Reactome:REACT_86519 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Canis familiaris"
xref: Reactome:REACT_88988 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Canis familiaris"
xref: Reactome:REACT_89551 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Saccharomyces cerevisiae"
xref: Reactome:REACT_94158 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Gallus gallus"
xref: Reactome:REACT_95387 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Danio rerio"
xref: Reactome:REACT_95721 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Dictyostelium discoideum"
xref: Reactome:REACT_96643 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Rattus norvegicus"
xref: Reactome:REACT_97328 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Bos taurus"
xref: Reactome:REACT_99679 "4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol, Rattus norvegicus"
xref: Reactome:REACT_99766 "4-methylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-carboxycholesta-8(9),24-dien-3beta-ol, Arabidopsis thaliana"
is_a: GO:0016709 ! oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NADH or NADPH as one donor, and incorporation of one atom of oxygen
AmiGO
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