To define the CD40 signaling components upstream of NF-kappa B activation and the functional consequences downstream of NF-kappa B activation , we examined mouse B cell transfectants expressing wild-type or mutant human CD40 .
to define the cd40 signaling components upstream of nf-kappa b activation and the functional consequences downstream of nf-kappa b activation , we examined mouse b cell transfectants expressing wild-type or mutant human cd40 .
O O O B-protein_molecule O O O O B-protein_complex I-protein_complex O O O O O O O B-protein_complex I-protein_complex O O O O B-cell_line I-cell_line I-cell_line I-cell_line O O O O O O O