tokens: Enhancer activity appears to be mediated by the binding of a complex of proteins from the jun and fos families to tandem AP-1 consensus sequences .
folded_tokens: enhancer activity appears to be mediated by the binding of a complex of proteins from the jun and fos families to tandem ap-1 consensus sequences .
labels: B-other_name I-other_name O O O O O O O O O O O O O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O