../ pdb_00004r18_xyz-ext-atom_v1-3.xml.gz 01-Dec-2023 16:04 1M pdb_00004r18_xyz-no-atom_v1-3.xml.gz 01-Dec-2023 16:04 190K pdb_00004r18_xyz_v1-3.cif.gz 01-Dec-2023 16:04 2M pdb_00004r18_xyz_v1-3.xml.gz 01-Dec-2023 16:04 3M