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

		+			=			+
	dolichyl phosphate D-mannose	+		biotin-Tyr-Thr-Ala-Val-NH2	=		dolichyl phosphate	+		O-D-mannosyl-N-biotinyl-Tyr-Thr-Ala-Val-NH2