Reaction catalyzed by bis(5'-adenosyl)-triphosphatase (3.6.1.29)

		+		H2O	=			+
	7-methylguanosine(5')triphospho(5')7-methylguanosine	+		H2O	=		7-methylguanosine(5')monophosphate	+		7-methylguanosine(5')diphosphate