ID 1.14.15.8 DE steroid 15beta-monooxygenase. AN CYP106A2. AN steroid 15beta-hydroxylase. CA reduced 2[4Fe-4S]-[ferredoxin] + progesterone + O2 + 2 H(+) = 15beta- CA hydroxyprogesterone + oxidized 2[4Fe-4S]-[ferredoxin] + H2O. CC -!- The enzyme from Bacillus megaterium hydroxylates a variety of 3-oxo- CC Delta4-steroids in position 15beta. CC -!- Ring A-reduced, aromatic, and 3beta-hydroxy-Delta4-steroids do not CC serve as substrates. DR Q06069, CPXM_PRIMG ; //