C-4 methylsterol oxidase activity
Catalysis of the reaction: 4,4-dimethyl-5alpha-cholest-7-en-3beta-ol + 6 Fe(II)-[cytochrome b5] + 5 H+ + 3 O2 = 4alpha-carboxy-4beta-methyl-5alpha-cholest-7-ene-3beta-ol + 6 Fe(III)-[cytochrome b5] + 4 H2O.
GO:0016716
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, another compound as one donor, and incorporation of one atom of oxygen
is_a
4-methylsterol oxidase activity
exact
methylsterol hydroxylase activity
related
methylsterol monooxygenase activity
related
SPAC630.08c