Reaction catalyzed by tRNA dimethylallyltransferase (2.5.1.75)

		+		adenosine 37 in tRNA	=		N6-(dimethylallyl)adenosine37 in tRNA	+
	dimethylallyl diphosphate	+		adenosine 37 in tRNA	=		N6-(dimethylallyl)adenosine37 in tRNA	+		diphosphate