tokens: In comparison to K562 , nucleated erythroblasts from adult human bone marrow exhibited a similar but nonidentical pattern of nuclear factor binding in vivo at the HS-40 region .
folded_tokens: in comparison to k562 , nucleated erythroblasts from adult human bone marrow exhibited a similar but nonidentical pattern of nuclear factor binding in vivo at the hs-40 region .
labels: O O O B-cell_line O B-cell_line I-cell_line O B-tissue I-tissue I-tissue I-tissue O O O O O O O B-protein_family_or_group I-protein_family_or_group O O O O O B-DNA_domain_or_region O O