../ pdb_000021hk_xyz-ext-atom_v1-0.xml.gz 16-Oct-2026 17:11 98K pdb_000021hk_xyz-no-atom_v1-0.xml.gz 16-Oct-2026 17:11 32K pdb_000021hk_xyz_v1-0.cif.gz 16-Oct-2026 17:11 220K pdb_000021hk_xyz_v1-0.xml.gz 16-Oct-2026 17:11 286K