[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@H1][Branch2][Ring1][Branch2][C@@H1][Branch2][Ring1][Ring1][C][=Branch1][C][=O][N][C@@H1][Branch1][=Branch1][C@@H1][Branch1][C][C][O][C][=Branch1][C][=O][O-1][NH3+1][O]"}, {"from": "gpt", "value": "The molecule is a dipeptide zwitterion resulting from transfer of a proton from the carboxy to the amino group of L-threonyl-L-threonine; major species at pH 7.3. It is a tautomer of a Thr-Thr."}]