[
  {
    "name": "lig_binding_prot_smiles_demo",
    "chains": [
      {
        "chain_type": "proteinChain",
        "sequence": "140-160"
      },
      {
        "chain_type": "ligand",
        "smiles": "CC=1N=C5CCCCN5C(C=1CCN2CCC(CC2)c4c3c(cc(cc3)F)on4)=O"
      }
    ],
    "center_method": "hotspot_center"
  }
]