[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is zwitterionic form of 3-aminoisobutyric acid arising from migration of a proton from the carboxy group to the amino group; major species at pH 7.3. It is a conjugate acid of a 3-aminoisobutyrate. It is a tautomer of a 3-aminoisobutyric acid."}, {"from": "gpt", "value": "[C][C][Branch1][Ring1][C][NH3+1][C][=Branch1][C][=O][O-1]"}]