../ pdb_00004c21_xyz-ext-atom_v1-3.xml.gz 15-Dec-2023 18:43 226K pdb_00004c21_xyz-no-atom_v1-3.xml.gz 15-Dec-2023 18:43 55K pdb_00004c21_xyz_v1-3.cif.gz 15-Dec-2023 18:43 260K pdb_00004c21_xyz_v1-3.xml.gz 15-Dec-2023 18:43 356K