Reaction catalyzed by Xaa-Pro aminopeptidase (3.4.11.9)

		+		H2O	=			+
	L-Asn-L-Pro-L-Thr-L-Asn-L-Leu-L-His	+		H2O	=		L-Asn	+		L-Pro-L-Thr-L-Asn-L-Leu-L-His