{"pdb_id": "3ulg", "source_chain": "A", "source_residue_id": "40", "target_chain": "B", "target_residue_id": "41", "interaction_type": "VDW", "distance": 3.476}
{"pdb_id": "3ulg", "source_chain": "B", "source_residue_id": "41", "target_chain": "A", "target_residue_id": "40", "interaction_type": "VDW", "distance": 3.476}
