tokens: It was found , in particular , that the element TCEd , which binds the transcription factor NF-kB , is very active in all three B clones tested .
folded_tokens: it was found , in particular , that the element tced , which binds the transcription factor nf-kb , is very active in all three b clones tested .
labels: O O O O O O O O O O B-DNA_domain_or_region O O O O B-protein_family_or_group I-protein_family_or_group B-protein_molecule O O O O O O O B-cell_line I-cell_line O O