../ pdb_00001i21_xyz-ext-atom_v1-4.xml.gz 25-Oct-2024 18:25 171K pdb_00001i21_xyz-no-atom_v1-4.xml.gz 25-Oct-2024 18:25 41K pdb_00001i21_xyz_v1-4.cif.gz 25-Oct-2024 18:25 194K pdb_00001i21_xyz_v1-4.xml.gz 25-Oct-2024 18:25 270K