The Enzyme Database

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Accepted name: steroid 9α-monooxygenase
Reaction: pregna-4,9(11)-diene-3,20-dione + AH2 + O2 = 9,11α-epoxypregn-4-ene-3,20-dione + A + H2O
Other name(s): steroid 9α-hydroxylase
Systematic name: steroid,hydrogen-donor:oxygen oxidoreductase (9-epoxidizing)
Comments: An enzyme system involving a flavoprotein (FMN) and two iron-sulfur proteins.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 82869-33-8
1.  Strijewski, A. The steroid-9α-hydroxylation system from Nocardia species. Eur. J. Biochem. 128 (1982) 125–135. [PMID: 7173200]
[EC created 1986]

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