../ pdb_00003x21_xyz-ext-atom_v1-2.xml.gz 03-Nov-2023 17:26 381K pdb_00003x21_xyz-no-atom_v1-2.xml.gz 03-Nov-2023 17:26 66K pdb_00003x21_xyz_v1-2.cif.gz 03-Nov-2023 17:26 797K pdb_00003x21_xyz_v1-2.xml.gz 03-Nov-2023 17:26 1M