Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
1.14.14 With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
1.14.14.16
R03784 Pregnenolone + [Reduced NADPH---hemoprotein reductase] + Oxygen <=> 21-Hydroxypregnenolone + [Oxidized NADPH---hemoprotein reductase] + H2O
IUBMB reaction hierarchy [BR:br08202]
1. Oxidoreductase reactions
1.14.14.16
R02130 Steroid <=> 21-Hydroxysteroid
R03784 Pregnenolone <=> 21-Hydroxypregnenolone
