1.14.18.1 tyrosinase - 1.14.18.2 CMP-N-acetylneuraminate monooxygenase - 1.14.18.3 methane monooxygenase (particulate) - 1.14.18.4 phosphatidylcholine 12-monooxygenase - 1.14.18.5 sphingolipid C4-monooxygenase - 1.14.18.6 4-hydroxysphinganine ceramide fatty acyl 2-hydroxylase - 1.14.18.7 dihydroceramide fatty acyl 2-hydroxylase - 1.14.18.9 4alpha-methylsterol monooxygenase - 1.14.18.10 plant 4,4-dimethylsterol C-4alpha-methyl-monooxygenase - 1.14.18.11 plant 4alpha-monomethylsterol monooxygenase - 1.14.18.12 2-hydroxy fatty acid dioxygenase - 1.14.18.8 7alpha-hydroxycholest-4-en-3-one 12alpha-hydroxylase deleted, now included with EC 1.14.14.139, 5beta-cholestane-3alpha,7alpha-diol 12alpha-hydroxylase 1.14.18.B1 5,6-dihydroxyindole-2-carboxylic acid oxidase preliminary BRENDA-supplied EC number