A Tat -responsive element is found upstream within the viral promoter that in glial-derived cell lines allows transactivation in the absence of TAR .
a tat -responsive element is found upstream within the viral promoter that in glial-derived cell lines allows transactivation in the absence of tar .
O B-protein_molecule O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-cell_line I-cell_line I-cell_line O O O O O O B-RNA_domain_or_region O