{
  "pdbcode": "3U1S",
  "heavy_residues": 238,
  "light_residues": 217,
  "antigen_residues": 0,
  "heavy_cdr_count": 70,
  "light_cdr_count": 60,
  "heavy_interface_count": 0,
  "light_interface_count": 0
}