. . . . "ATP = cyclic-AMP + diphosphate"^^ . "Adenylyl cyclase"^^ . "ATP pyrophosphate-lyase"^^ . "3',5'-cyclic AMP synthetase"^^ . "Adenyl cyclase"^^ . "4.6.1.1"^^ . . . . . . . "ATP = cyclic-AMP + diphosphate"^^ . . . . . . . . . . . . .