Transient-transfection assays showed that bcl-x promoter was transactivated by wild-type Tax .
transient-transfection assays showed that bcl-x promoter was transactivated by wild-type tax .
B-other_name I-other_name O O B-DNA_domain_or_region I-DNA_domain_or_region O O O B-protein_molecule B-protein_molecule O