These findings show that nuclear NF-kappa B is necessary to activate the kappa B enhancer , while KBF1 by itself is not sufficient .
these findings show that nuclear nf-kappa b is necessary to activate the kappa b enhancer , while kbf1 by itself is not sufficient .
O O O O B-protein_molecule B-protein_molecule I-protein_molecule O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule O O O O O O