The NF-kappa B1 gene encodes a 105-kD protein that is the precursor of the p50 component of NF-kappa B .
the nf-kappa b1 gene encodes a 105-kd protein that is the precursor of the p50 component of nf-kappa b .
O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule I-protein_molecule O O O O O O B-protein_subunit O O B-protein_complex I-protein_complex O