1.14.99.24	pregna-4,9(11)-diene-3,20-dione + reduced acceptor + O2 = 9,11alpha-epoxypregn-4-ene-3,20-dione + acceptor + H2O	A flavoprotein	-	
1.14.99.24	pregna-4,9(11)-diene-3,20-dione + reduced acceptor + O2 = 9,11alpha-epoxypregn-4-ene-3,20-dione + acceptor + H2O	An enzyme system involving a flavoprotein (FMN) and two iron-sulfur proteins	-