tokens: This region binds an inducible , T-cell-specific factor over its 5' end , a site that is necessary for the expression of IL-3 in the absence of other upstream elements .
folded_tokens: this region binds an inducible , t-cell-specific factor over its 5' end , a site that is necessary for the expression of il-3 in the absence of other upstream elements .
labels: O O O O O O B-protein_family_or_group I-protein_family_or_group O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O B-protein_molecule O O O O O O O O