../ 21nj-assembly1.cif.gz 06-Mar-2026 14:49 55K 21nj-assembly2.cif.gz 06-Mar-2026 14:49 54K 21nl-assembly1.cif.gz 06-Mar-2026 14:49 57K 21nl-assembly2.cif.gz 06-Mar-2026 14:49 56K