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Enzymes in the steroidogenic pathway.

21-hydroxylase

Pathways:

17 a-Hydroxyprogesterone à 11- Deoxycortisol

Progesterone à 11- Deoxycorticosterone

Reaction: steroid hydroxylation at C21

Cofactors:

Inhibitors:

Enzyme Synonyms: P450c21 (steroid 21-hydroxylase), CYP21A