Reaction catalyzed by dipeptidyl-peptidase III (3.4.14.4), dipeptidyl-peptidase IV (3.4.14.5), prolyl oligopeptidase (3.4.21.26)

		+		H2O	=			+
	Gly-Pro-4-methoxy-beta-naphthylamide	+		H2O	=		Gly-Pro	+		4-methoxy-beta-naphthylamine