../ pdb_000028zk_xyz-ext-atom_v1-0.xml.gz 28-Aug-2026 18:07 463K pdb_000028zk_xyz-no-atom_v1-0.xml.gz 28-Aug-2026 18:07 90K pdb_000028zk_xyz_v1-0.cif.gz 28-Aug-2026 18:07 1012K pdb_000028zk_xyz_v1-0.xml.gz 28-Aug-2026 18:07 1M