../ pdb_00004hel_xyz-ext-atom_v1-1.xml.gz 03-Nov-2023 17:25 1M pdb_00004hel_xyz-no-atom_v1-1.xml.gz 03-Nov-2023 17:25 160K pdb_00004hel_xyz_v1-1.cif.gz 03-Nov-2023 17:25 1M pdb_00004hel_xyz_v1-1.xml.gz 03-Nov-2023 17:25 2M