Reaction catalyzed by phosphatidylglycerol-membrane-oligosaccharide glycerophosphotransferase (2.7.8.20)

		+			=			+
	phosphatidylglycerol	+		beta-gentiobiose	=		sn-1,2-diacylglycerol	+		beta-gentiobiose-6-phosphoglycerol