Transcription factors USF1 and USF2 up-regulate gene expression ( i . e . , HIV-1 long terminal repeats ) via interaction with an E box on their target promoters , which is also a binding site for c-Myc .
transcription factors usf1 and usf2 up-regulate gene expression ( i . e . , hiv-1 long terminal repeats ) via interaction with an e box on their target promoters , which is also a binding site for c-myc .
B-protein_family_or_group I-protein_family_or_group B-protein_molecule O B-protein_molecule O B-other_name I-other_name O O O O O O B-virus O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O B-protein_molecule O