[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@H1][Branch2][Ring2][S][C][=Branch1][C][=O][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@@H1][C@H1][Branch2][Ring1][N][C@H1][Branch2][Ring1][#Branch1][C@@H1][Branch1][Ring2][O][Ring1][Branch1][N][C][=N][C][=C][Branch1][=Branch2][N][=C][N][=C][Ring1][=Branch1][Ring1][=Branch2][N][O][O][NH3+1]"}, {"from": "gpt", "value": "The molecule is a zwitterion resulting from the transfer of a proton from the phosphate to the amino group of D-alanyl-AMP; major species at pH 7.3. It is an enantiomer of a L-alanyl-AMP zwitterion. It is a tautomer of a D-alanyl-AMP."}]