../ pdb_000021xj_xyz-ext-atom_v1-0.xml.gz 13-Feb-2026 17:38 5878 pdb_000021xj_xyz-no-atom_v1-0.xml.gz 13-Feb-2026 17:38 11K pdb_000021xj_xyz_v1-0.cif.gz 13-Feb-2026 17:38 16K pdb_000021xj_xyz_v1-0.xml.gz 13-Feb-2026 17:38 20K