../ pdb_00004s20_xyz-ext-atom_v1-4.xml.gz 15-Nov-2024 22:02 1M pdb_00004s20_xyz-no-atom_v1-4.xml.gz 15-Nov-2024 22:02 241K pdb_00004s20_xyz_v1-4.cif.gz 15-Nov-2024 22:02 3M pdb_00004s20_xyz_v1-4.xml.gz 15-Nov-2024 22:02 4M