3.6.1.41 (symmetrical) Ap4A hydrolase, (symmetrical) dinucleoside tetraphosphatase, adenosine tetraphosphate phosphodiesterase, Ap4A hydrolase, APAH, ApaH hydrolase, bis(5'-adenosyl) tetraphosphatase, bis(5'-nucleosyl)-tetraphosphatase (symmetrical), diadenosine 5',5'''-P1,P4-tetraphosphatase, diadenosine 5',5'''-P1,P4-tetraphosphate pyrophosphohydrolase, diadenosine polyphosphate hydrolase, Diadenosine tetraphosphatase, diadenosine tetraphosphate hydrolase, diadenosinetetraphosphatase (symmetrical), dinucleosidetetraphosphatase (symmetrical), MXAN_1509, MXAN_7163, phosphatase, bis(5'-nucleosyl) tetra- (symmetrical), PrpA, symmetrical Ap4A hydrolase, symmetrical diadenosine tetraphosphate hydrolase - -, 654033, 654523, 656153, 667066, 697896, 733872