Reaction catalyzed by pyroglutamyl-peptidase I (3.4.19.3)

		+		H2O	=			+
	neurotensin	+		H2O	=		pyroglutamate	+		Leu-Tyr-Glu-Asn-Lys-Pro-Ag-Arg-Pro-Tyr-Ile-Leu