GO:0000254

C-4 methylsterol oxidase activity

Details: 
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]
Evidence Code: