Reaction catalyzed by tripeptide aminopeptidase (3.4.11.4), Clostridial aminopeptidase (3.4.11.13), aminopeptidase Y (3.4.11.15), methionyl aminopeptidase (3.4.11.18)

		+		H2O	=			+
	Met-Gly-Gly	+		H2O	=		Met	+		Gly-Gly