../ pdb_00007s21_xyz-ext-atom_v1-4.xml.gz 16-May-2025 16:55 40K pdb_00007s21_xyz-no-atom_v1-4.xml.gz 16-May-2025 16:55 24K pdb_00007s21_xyz_v1-4.cif.gz 16-May-2025 16:55 61K pdb_00007s21_xyz_v1-4.xml.gz 16-May-2025 16:55 79K