3.6.1.17	5',5'-diadenosine tetraphosphate + H2O	-	
3.6.1.17	diadenosine 5',5'-P1,P4-tetraphosphate + H2O	-	
3.6.1.17	diadenosine 5',5'-P1,P4-tetraphosphate + H2O	key enzyme controlling the in vivo concentration of diadenosine 5',5'-P1,P4 tetraphosphate (Ap4A) - an important signaling molecule involved in regulation of DNA replication and repair, signaling in stress response and apoptosis	
3.6.1.17	diadenosine 5',5'-P1,P5-pentaphosphate + H2O	-	
3.6.1.17	diguanosine 5',5'-P1,P4-tetraphosphate + H2O	-	
3.6.1.17	additional information	enzyme hydrolyses bis(5'-nucleosidyl) polyphosphates (Np4-6N') in such a way that a nucleosidyl triphosphate is always one of the products	
3.6.1.17	P1,P4-bis(5'-adenosyl) tetraphosphate + H2O	-	
3.6.1.17	P1,P4-bis(5'-adenosyl) tetraphosphate + H2O	possible role as reporter for luciferase gene	
3.6.1.17	P1,P4-bis(5'-adenosyl) tetraphosphate + H2O	stress response	
3.6.1.17	P1,P4-bis(5'-guanosyl)tetraphosphate + H2O	-