ID   3.6.1.61
DE   diadenosine hexaphosphate hydrolase (ATP-forming).
CA   (1) P(1),P(6)-bis(5'-adenosyl) hexaphosphate + H2O = 2 ATP + 2 H(+).
CA   (2) P(1),P(5)-bis(5'-adenosyl) pentaphosphate + H2O = ADP + ATP + 2 H(+).
CA   (3) P(1),P(4)-bis(5'-adenosyl) tetraphosphate + H2O = AMP + ATP + 2 H(+).
CC   -!- The enzyme hydrolyzes P(1),P(4)-bis(5-guanosyl) tetraphosphate very
CC       slowly (cf. EC 3.6.1.17).
DR   A0QUZ2, MUTT1_MYCS2;  Q75UV1, NDX1_THETH ;  A2VE79, NUDT3_BOVIN;
DR   O95989, NUDT3_HUMAN;  Q9JI46, NUDT3_MOUSE;  Q566C7, NUDT3_RAT  ;
DR   Q9NZJ9, NUDT4_HUMAN;  Q8R2U6, NUDT4_MOUSE;  Q5RAF0, NUDT4_PONAB;
DR   Q99MY2, NUDT4_RAT  ;  Q9RVK2, Y1025_DEIRA;
//