tokens: Using sequential deletion mutants of the human fas promoter in transient transfection assays , we identified a 47-bp sequence ( positions -306 to -260 relative to the ATG ) required for activation-driven fas upregulation .
folded_tokens: using sequential deletion mutants of the human fas promoter in transient transfection assays , we identified a 47-bp sequence ( positions -306 to -260 relative to the atg ) required for activation-driven fas upregulation .
labels: O B-DNA_family_or_group I-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 O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-polynucleotide O O O B-other_name I-other_name I-other_name O