Reaction catalyzed by 2-phospho-L-lactate transferase (2.7.8.28)

	3-[(R)-glyceryl]-diphospho-5\'-guanosine	+			=			+		3PG-factor 420-0
	3-[(R)-glyceryl]-diphospho-5'-guanosine	+		7,8-didemethyl-8-hydroxy-5-deazariboflavin	=		GMP	+		3PG-factor 420-0