../ pdb_00004ckx_xyz-ext-atom_v1-2.xml.gz 15-Dec-2023 18:44 24K pdb_00004ckx_xyz-no-atom_v1-2.xml.gz 15-Dec-2023 18:44 19K pdb_00004ckx_xyz_v1-2.cif.gz 15-Dec-2023 18:44 40K pdb_00004ckx_xyz_v1-2.xml.gz 15-Dec-2023 18:44 52K