../ pdb_000021tw_xyz-ext-atom_v1-0.xml.gz 24-Apr-2026 16:38 112K pdb_000021tw_xyz-no-atom_v1-0.xml.gz 24-Apr-2026 16:38 35K pdb_000021tw_xyz_v1-0.cif.gz 24-Apr-2026 16:38 134K pdb_000021tw_xyz_v1-0.xml.gz 24-Apr-2026 16:38 186K