Mitogen-mediated transcriptional activation of the CAT gene in this construct was inhibited in Nef -expressing cells but not in control cells .
mitogen-mediated transcriptional activation of the cat gene in this construct was inhibited in nef -expressing cells but not in control cells .
O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-protein_family_or_group O O O O O O O O