Proteasome-dependent inhibitory kappa B alpha ( I kappa B alpha ) and I kappa B beta degradation occurred downstream of CD40 ligation and preceded CD40 -mediated NF-kappa B nuclear translocation .
proteasome-dependent inhibitory kappa b alpha ( i kappa b alpha ) and i kappa b beta degradation occurred downstream of cd40 ligation and preceded cd40 -mediated nf-kappa b nuclear translocation .
O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O O O O B-protein_molecule O O O B-protein_molecule O B-protein_complex I-protein_complex O O O