Reaction catalyzed by dolichyl-phosphate-mannose-protein mannosyltransferase (2.4.1.109)

		+			=			+
	dolichyl phosphate D-mannose	+		Tyr-Asn-Pro-Thr-Ser-Val-NH2	=		dolichyl phosphate	+		O-alpha-D-mannosyl-Tyr-Asn-Pro-Thr-Ser-Val-NH2