Reaction catalyzed by dipeptidyl-peptidase IV (3.4.14.5)

		+		H2O	=			+
	Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2	+		H2O	=		Arg-Pro	+		Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2