../ pdb_000021ik_xyz-ext-atom_v1-1.xml.gz 14-Aug-2026 15:00 25K pdb_000021ik_xyz-no-atom_v1-1.xml.gz 14-Aug-2026 15:00 21K pdb_000021ik_xyz_v1-1.cif.gz 14-Aug-2026 15:00 70K pdb_000021ik_xyz_v1-1.xml.gz 14-Aug-2026 15:00 87K