Activating protein-1 ( AP-1 ) binding TPA responsive elements ( TRE ) are located downstream of the transcription initiation site in the U5 region of the HIV-1 long terminal repeat ( LTR ) .
activating protein-1 ( ap-1 ) binding tpa responsive elements ( tre ) are located downstream of the transcription initiation site in the u5 region of the hiv-1 long terminal repeat ( ltr ) .
B-protein_molecule I-protein_molecule O B-protein_molecule O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O B-DNA_family_or_group O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-virus O O O O B-DNA_domain_or_region O O