[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C@H1][Branch1][Branch1][N][C][Ring1][Branch1][C][=Branch1][C][=O][N][C][C@@H1][Branch1][#Branch2][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a dipeptide composed of L-proline and L-hydroxyproline residues. It is a biomarker for bone collagen degradation. It has a role as a diagnostic agent, a human metabolite and a biomarker. It is functionally related to a L-proline and a trans-4-hydroxy-L-proline. It is a tautomer of a Pro-Hyp zwitterion."}]