The 3'-CAGGTG E-box could bind USF proteins , the ubiquitous repressor ZEB , or the basic helix-loop-helix proteins E2A and HEB , and we showed that a competition between ZEB and E2A /HEB proteins is involved in the silencer activity .
the 3'-caggtg e-box could bind usf proteins , the ubiquitous repressor zeb , or the basic helix-loop-helix proteins e2a and heb , and we showed that a competition between zeb and e2a /heb proteins is involved in the silencer activity .
O B-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule I-protein_molecule O O B-protein_family_or_group I-protein_family_or_group B-protein_molecule O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group B-protein_molecule O B-protein_molecule O O O O O O O O B-protein_molecule O B-protein_molecule O O O O O O B-other_name I-other_name O