tokens: The formation of this complex also requires both AP-1 sites and correlates with maximal enhancer activity .
folded_tokens: the formation of this complex also requires both ap-1 sites and correlates with maximal enhancer activity .
labels: O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O B-other_name B-DNA_domain_or_region O O