{"pdb_id": "4gra", "source_chain": "A", "source_residue_id": "225", "target_chain": "B", "target_residue_id": "225", "interaction_type": "VDW", "distance": 3.012}
{"pdb_id": "4gra", "source_chain": "B", "source_residue_id": "225", "target_chain": "A", "target_residue_id": "225", "interaction_type": "VDW", "distance": 3.012}
