../ pdb_00004r21_xyz-ext-atom_v1-2.xml.gz 23-Feb-2024 17:49 152K pdb_00004r21_xyz-no-atom_v1-2.xml.gz 23-Feb-2024 17:49 43K pdb_00004r21_xyz_v1-2.cif.gz 23-Feb-2024 17:49 346K pdb_00004r21_xyz_v1-2.xml.gz 23-Feb-2024 17:49 472K