../ pdb_00006zkk_xyz-ext-atom_v1-4.xml.gz 28-Aug-2026 18:06 2M pdb_00006zkk_xyz-no-atom_v1-4.xml.gz 28-Aug-2026 18:06 274K pdb_00006zkk_xyz_v1-4.cif.gz 28-Aug-2026 18:06 2M pdb_00006zkk_xyz_v1-4.xml.gz 28-Aug-2026 18:06 2M