Reaction catalyzed by tRNA dimethylallyltransferase (2.5.1.75)

		+			=			+		GGGCAUUGAAAAUGCCC containing 6-dimethylallyladenosine
	dimethylallyl diphosphate	+		GGGCAUUGAAAAUGCCC	=		diphosphate	+		GGGCAUUGAAAAUGCCC containing 6-dimethylallyladenosine