Reaction catalyzed by 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase (2.7.6.3)

		+			=			+
	6-hydroxymethyl-7,8-dihydropterin	+		MgATP2-	=		6-hydroxymethyl-7,8-dihydropterin diphosphate	+		MgAMP