However , within the B-cell lineage , ERP is highly expressed primarily at early stages of B-lymphocyte development , and expression declines drastically upon B-cell maturation , correlating with the enhancer activity of the IgH pi site .
however , within the b-cell lineage , erp is highly expressed primarily at early stages of b-lymphocyte development , and expression declines drastically upon b-cell maturation , correlating with the enhancer activity of the igh pi site .
O O O O B-cell_type I-cell_type O B-protein_molecule O O O O O O O O B-cell_type O O O O O O O B-other_name I-other_name O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O