In contrast , NK activity was not affected by pretreatment of the effector cells with the proteasome inhibitor N-acetyl-leu-leu-norleucinal which selectively inhibits NF-kappa B activation .
in contrast , nk activity was not affected by pretreatment of the effector cells with the proteasome inhibitor n-acetyl-leu-leu-norleucinal which selectively inhibits nf-kappa b activation .
O O O B-other_name I-other_name O O O O O O O O O O O B-protein_complex O B-other_organic_compound O O O B-protein_complex I-protein_complex O O