[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][O][C][N][C][Ring1][Branch1][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a monohydroxyproline where the hydroxy group is located at the 4-position. It is found in fibrillar collagen. It has a role as a human metabolite. It is a conjugate acid of a 4-hydroxyprolinate. It is a tautomer of a 4-hydroxyproline zwitterion."}]