Reaction catalyzed by cathepsin B (3.4.22.1)

		+		H2O	=			+
	Ac-His-Pro-Val-Lys-7-amido-3-carbamoylmethyl-4-methylcoumarin	+		H2O	=		Ac-His-Pro-Val-Lys	+		7-amino-3-carbamoyl-4-methylcoumarin