../ pdb_00001ckr_xyz-ext-atom_v1-4.xml.gz 22-Dec-2023 16:54 922K pdb_00001ckr_xyz-no-atom_v1-4.xml.gz 22-Dec-2023 16:54 35K pdb_00001ckr_xyz_v1-4.cif.gz 22-Dec-2023 16:54 965K pdb_00001ckr_xyz_v1-4.xml.gz 22-Dec-2023 16:54 1M