To identify the molecular basis for specificity and inducibility , the chromatin configuration of the human B7 . 1 gene was examined in intact nuclei from various cell types .
to identify the molecular basis for specificity and inducibility , the chromatin configuration of the human b7 . 1 gene was examined in intact nuclei from various cell types .
O O O O O O O O O O O B-DNA_family_or_group O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O B-cell_component O O O O O