Various extracellular signals induce phosphorylation and rapid degradation of I kappa B alpha to release NF kappa B .
various extracellular signals induce phosphorylation and rapid degradation of i kappa b alpha to release nf kappa b .
O B-other_name I-other_name O B-other_name O O B-other_name O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O O B-protein_molecule I-protein_molecule I-protein_molecule O