tokens: Tandem AP-1-binding sites within the human beta-globin dominant control region function as an inducible enhancer in erythroid cells .
folded_tokens: tandem ap-1-binding sites within the human beta-globin dominant control region function as an inducible enhancer in erythroid cells .
labels: 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 I-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_family_or_group I-DNA_family_or_group O B-cell_type I-cell_type O