../ pdb_000021ou_xyz-ext-atom_v1-2.xml.gz 07-Aug-2026 19:54 587K pdb_000021ou_xyz-no-atom_v1-2.xml.gz 07-Aug-2026 19:54 76K pdb_000021ou_xyz_v1-2.cif.gz 07-Aug-2026 19:54 619K pdb_000021ou_xyz_v1-2.xml.gz 07-Aug-2026 19:54 858K