In HIV-1 , the sequences that respond to these signaling events are found in the long terminal repeat ( LTR ) and comprise the transcriptional enhancer , which contains two conserved binding sites for the nuclear factor kappa B ( NF kappa B ) .
in hiv-1 , the sequences that respond to these signaling events are found in the long terminal repeat ( ltr ) and comprise the transcriptional enhancer , which contains two conserved binding sites for the nuclear factor kappa b ( nf kappa b ) .
O B-virus O O O O O O O B-other_name I-other_name O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region 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 I-DNA_domain_or_region O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule I-protein_molecule I-protein_molecule O O