[{"from": "human", "value": "Describe this molecule. [C][C@@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][O]"}, {"from": "gpt", "value": "The molecule is zwitterionic form of L-allothreonine. It is a tautomer of a L-allothreonine."}]