tokens: A regulatory element in the human interleukin 2 gene promoter is a binding site for the zinc finger proteins Sp1 and EGR-1 .
folded_tokens: a regulatory element in the human interleukin 2 gene promoter is a binding site for the zinc finger proteins sp1 and egr-1 .
labels: O B-DNA_family_or_group I-DNA_family_or_group 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 B-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group B-protein_molecule O B-protein_molecule O