../ pdb_00004b21_xyz-ext-atom_v1-3.xml.gz 03-May-2024 16:56 53K pdb_00004b21_xyz-no-atom_v1-3.xml.gz 03-May-2024 16:56 30K pdb_00004b21_xyz_v1-3.cif.gz 03-May-2024 16:56 76K pdb_00004b21_xyz_v1-3.xml.gz 03-May-2024 16:56 100K