../ pdb_00007k21_xyz-ext-atom_v1-2.xml.gz 28-Mar-2025 14:39 227K pdb_00007k21_xyz-no-atom_v1-2.xml.gz 28-Mar-2025 14:39 50K pdb_00007k21_xyz_v1-2.cif.gz 28-Mar-2025 14:39 264K pdb_00007k21_xyz_v1-2.xml.gz 28-Mar-2025 14:39 369K