Reaction catalyzed by 7-dimethylallyltryptophan synthase (2.5.1.80)

		+			=			+
	dimethylallyl diphosphate	+		1,7-dihydroxynaphthalene	=		diphosphate	+		4-(3-methylbut-2-en-1-yl)naphthalene-1,7-diol