tokens: In group I BL cells , containing low levels of NF-kappaB , only RBP binding was observed in EMSAs , whereas NF-kappaB binding could be demonstrated in EBV-transformed B cell lines containing high levels of activated NF-kappaB .
folded_tokens: in group i bl cells , containing low levels of nf-kappab , only rbp binding was observed in emsas , whereas nf-kappab binding could be demonstrated in ebv-transformed b cell lines containing high levels of activated nf-kappab .
labels: O B-cell_line I-cell_line I-cell_line I-cell_line O O O O O B-protein_complex O O B-protein_molecule O O O O B-other_name O O B-protein_complex O O O O O B-cell_line I-cell_line I-cell_line I-cell_line O O O O O B-protein_complex O