Abieta-7,13-dien-18-ol hydroxylase (EC 1.14.13.109, CYP720B1, PTAO) is an enzyme with systematic name abieta-7,13-dien-18-ol,NADPH:oxygen oxidoreductase (18-hydroxylating).
[1][2][3] This enzyme catalyses the following chemical reaction Abietadienol hydroxylase is a heme-thiolate protein (P-450).