Reaction catalyzed by initiation-specific alpha-1,6-mannosyltransferase (2.4.1.232)

		+		pyridylaminated oligosaccharide acceptor	=			+
	GDP-mannose	+		pyridylaminated oligosaccharide acceptor	=		GDP	+		pyridylaminated alpha-mannosyl-1,6-oligosaccharide