../ pdb_00003k31_xyz-ext-atom_v1-2.xml.gz 01-Sep-2023 16:38 97K pdb_00003k31_xyz-no-atom_v1-2.xml.gz 01-Sep-2023 16:38 38K pdb_00003k31_xyz_v1-2.cif.gz 01-Sep-2023 16:38 220K pdb_00003k31_xyz_v1-2.xml.gz 01-Sep-2023 16:38 304K