../ pdb_00007btk_xyz-ext-atom_v1-4.xml.gz 05-Jun-2026 15:41 763K pdb_00007btk_xyz-no-atom_v1-4.xml.gz 05-Jun-2026 15:41 136K pdb_00007btk_xyz_v1-4.cif.gz 05-Jun-2026 15:40 848K pdb_00007btk_xyz_v1-4.xml.gz 05-Jun-2026 15:41 1M