tokens: We have previously shown that a DNA-binding factor specific to adult hematopoietic cells ( polypryrimidine-binding factor , PYBF ) binds to a pyrimidine-rich region 1 kb upstream from the human delta-globin-encoding gene ( HBD ) .
folded_tokens: we have previously shown that a dna-binding factor specific to adult hematopoietic cells ( polypryrimidine-binding factor , pybf ) binds to a pyrimidine-rich region 1 kb upstream from the human delta-globin-encoding gene ( hbd ) .
labels: O O O O O O B-protein_family_or_group I-protein_family_or_group O O B-cell_type I-cell_type I-cell_type O B-protein_molecule I-protein_molecule O B-protein_molecule O O O O B-DNA_domain_or_region I-DNA_domain_or_region B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region O O