These characteristics make the ACT-1 site analogous to the activating ARRE-1 site in the IL-2 promoter .
these characteristics make the act-1 site analogous to the activating arre-1 site in the il-2 promoter .
O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region O