../ pdb_00006zkn_xyz-ext-atom_v1-4.xml.gz 28-Aug-2026 18:07 1M pdb_00006zkn_xyz-no-atom_v1-4.xml.gz 28-Aug-2026 18:07 275K pdb_00006zkn_xyz_v1-4.cif.gz 28-Aug-2026 18:07 2M pdb_00006zkn_xyz_v1-4.xml.gz 28-Aug-2026 18:07 2M