../ pdb_000021ok_xyz-ext-atom_v1-2.xml.gz 14-Aug-2026 15:00 137K pdb_000021ok_xyz-no-atom_v1-2.xml.gz 14-Aug-2026 15:00 42K pdb_000021ok_xyz_v1-2.cif.gz 14-Aug-2026 15:00 170K pdb_000021ok_xyz_v1-2.xml.gz 14-Aug-2026 15:00 224K