DNA accessibility to restriction enzymes within the chromosomal copy of the vitellogenin gene B1 promoter shows that the estrogen responsive unit and the promoter proximal region are sensitive to digestion in uninduced and estrogen -induced hepatocytes but not in erythrocyte nuclei .
dna accessibility to restriction enzymes within the chromosomal copy of the vitellogenin gene b1 promoter shows that the estrogen responsive unit and the promoter proximal region are sensitive to digestion in uninduced and estrogen -induced hepatocytes but not in erythrocyte nuclei .
O O O B-protein_family_or_group I-protein_family_or_group O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-lipid O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-lipid O B-cell_type O O O B-cell_component I-cell_component O