Reaction catalyzed by plasmin (3.4.21.7), t-Plasminogen activator (3.4.21.68), cathepsin B (3.4.22.1), gingipain K (3.4.22.47), plasminogen activator Pla (3.4.23.48)

		+		H2O	=			+
	D-Val-Leu-Lys-p-nitroanilide	+		H2O	=		D-Val-Leu-Lys	+		p-nitroaniline