Corticosterone 18-monooxygenase () is an enzyme that catalyzes the chemical reaction
Corticosterone is an oxidoreductase which uses molecular oxygen to insert a hydroxy group at position 18 of the steroid. It requires adrenal ferredoxin to transfer electrons to the cytochrome P450 active site. The systematic name of this enzyme class is corticosterone,reduced-adrenal-ferredoxin:oxygen oxidoreductase (18-hydroxylating). Other names in common use include corticosterone 18-hydroxylase, and corticosterone methyl oxidase. This enzyme is part of the pathway which converts corticosterone to aldosterone.
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