Reaction catalyzed by beta-1,4-mannooligosaccharide phosphorylase (2.4.1.319)

		+			=			+
	beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man	+		phosphate	=		beta-D-Man-(1->4)-beta-D-Man-(1->4)-beta-D-Man-(1->4)-D-Man	+		alpha-D-mannose 1-phosphate