Mutations affecting the 5' guanine residues of the kappa B site were unable to compete for these NF-kappa B -related proteins .
mutations affecting the 5' guanine residues of the kappa b site were unable to compete for these nf-kappa b -related proteins .
O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-protein_molecule I-protein_molecule O O O