5 . One of the signaling molecules which mediates programmed cell death is nuclear factor Kappa-B ( NF-kappa B ) .
5 . one of the signaling molecules which mediates programmed cell death is nuclear factor kappa-b ( nf-kappa b ) .
O O O O O B-protein_family_or_group I-protein_family_or_group O O B-other_name I-other_name I-other_name O B-protein_complex I-protein_complex I-protein_complex O B-protein_complex I-protein_complex O O