Reaction catalyzed by 11beta-hydroxysteroid dehydrogenase (NAD+) (1.1.1.B40), 11beta-hydroxysteroid dehydrogenase (1.1.1.146)

		+		NADPH	=			+		NADP+
	11-dehydrocorticosterone	+		NADPH	=		corticosterone	+		NADP+