Reaction catalyzed by pancreatic elastase (3.4.21.36), Subtilisin (3.4.21.62)

		+		H2O	=			+
	succinyl-Ala-Ala-Phe-4-nitroanilide	+		H2O	=		succinyl-Ala-Ala-Phe	+		4-nitroaniline