Stepwise deletions into the proximal promoter also revealed that the CBF site , but not the YY-1 site , was required for efficient induction of transcriptional activation .
stepwise deletions into the proximal promoter also revealed that the cbf site , but not the yy-1 site , was required for efficient induction of transcriptional activation .
O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O B-protein_molecule O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-other_name I-other_name O