Because these induced gene products have NF-kappaB sites in their promoter regions , we next examined whether there was an up-regulation of nuclear NF-kappaB levels .
because these induced gene products have nf-kappab sites in their promoter regions , we next examined whether there was an up-regulation of nuclear nf-kappab levels .
O O O O O O B-protein_complex O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O B-other_name B-protein_complex O O