tokens: By isolating Daudi x HeLa heterokaryons a few hours after fusion , we have studied the initial fate of two B cell-specific transcription factors involved in Ig gene transcription , Oct-2 and NF-kappa B .
folded_tokens: by isolating daudi x hela heterokaryons a few hours after fusion , we have studied the initial fate of two b cell-specific transcription factors involved in ig gene transcription , oct-2 and nf-kappa b .
labels: O O B-cell_line I-cell_line I-cell_line I-cell_line O O O O O O O O O O O O O O B-protein_family_or_group I-protein_family_or_group B-protein_family_or_group I-protein_family_or_group O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region O B-protein_complex I-protein_complex O