{"pdb_id": "2ka1", "source_chain": "A", "source_residue_id": "180", "target_chain": "B", "target_residue_id": "180", "interaction_type": "VDW", "distance": 3.198}
{"pdb_id": "2ka1", "source_chain": "B", "source_residue_id": "180", "target_chain": "A", "target_residue_id": "180", "interaction_type": "VDW", "distance": 3.198}
