2.7.7.53 ATP adenylyltransferase; bis(5'-nucleosyl)-tetraphosphate phosphorylase (NDP-forming); diadenosinetetraphosphate alphabeta-phosphorylase; adenine triphosphate adenylyltransferase; diadenosine 5',5'"-P1,P4-tetraphosphate alphabeta-phosphorylase (ADP- • • •