adenosine 5'-tetraphosphate + ADP + 2 H(+) => P(1),P(6)-bis(5'-adenosyl) hexaphosphate + H2O
adenosine 5'-tetraphosphate + adp + 2 h(+) => p(1),p(6)-bis(5'-adenosyl) hexaphosphate + h2o
adenosine 5'-tetraphosphate + ADP + 2 H(+) => P(1),P(6)-bis(5'-adenosyl) hexaphosphate + H2O
adenosine 5'-tetraphosphate + adp + 2 h(+) => p(1),p(6)-bis(5'-adenosyl) hexaphosphate + h2o