../ pdb_000021fn_xyz-ext-atom_v1-2.xml.gz 31-Jul-2026 16:01 52K pdb_000021fn_xyz-no-atom_v1-2.xml.gz 31-Jul-2026 16:01 27K pdb_000021fn_xyz_v1-2.cif.gz 31-Jul-2026 16:01 121K pdb_000021fn_xyz_v1-2.xml.gz 31-Jul-2026 16:01 162K