Tags: Enzyme.
3-ketosteroid 9alpha-monooxygenase (EC 1.14.13.142 KshAB 3-ketosteroid 9alpha-hydroxylase) is an enzyme with system name androsta-14-diene-317-dioneNADH:oxygen oxidoreductase (9alpha-hydroxylating). This enzyme catalyses the following chemical reaction androsta-14-diene-317-dione + NADH + H+ + O2 9alpha-hydroxyandrosta-14-diene-317-dione + NAD+ + H2O3-Ketosteroid 9alpha-monooxygenase is involved in the cholesterol degradation in several bacterial pathogens.