Synergism between two distinct elements of the HTLV-I enhancer during activation by the trans-activator of HTLV-I .
synergism between two distinct elements of the htlv-i enhancer during activation by the trans-activator of htlv-i .
O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O B-protein_family_or_group O B-virus O