{
  "pdbcode": "4FQI",
  "heavy_residues": 215,
  "light_residues": 211,
  "antigen_residues": 324,
  "heavy_cdr_count": 63,
  "light_cdr_count": 60,
  "heavy_interface_count": 6,
  "light_interface_count": 0
}