The rate of transcription initiation directed by the long terminal repeat ( LTR ) of HIV-1 increases in response to mitogenic stimuli of T cells .
the rate of transcription initiation directed by the long terminal repeat ( ltr ) of hiv-1 increases in response to mitogenic stimuli of t cells .
O O O B-other_name I-other_name O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O B-virus O O O O B-other_name I-other_name O B-cell_type I-cell_type O