../ pdb_000021cb_xyz-ext-atom_v1-2.xml.gz 22-May-2026 15:41 273K pdb_000021cb_xyz-no-atom_v1-2.xml.gz 22-May-2026 15:41 73K pdb_000021cb_xyz_v1-2.cif.gz 22-May-2026 15:41 329K pdb_000021cb_xyz_v1-2.xml.gz 22-May-2026 15:41 434K