../ pdb_000021rn_xyz-ext-atom_v1-0.xml.gz 11-Sep-2026 15:43 177K pdb_000021rn_xyz-no-atom_v1-0.xml.gz 11-Sep-2026 15:43 59K pdb_000021rn_xyz_v1-0.cif.gz 11-Sep-2026 15:43 220K pdb_000021rn_xyz_v1-0.xml.gz 11-Sep-2026 15:43 297K