We also demonstrate that two other sites contribute to promoter activity in B cells ; an Sp1 binding site adjacent to the octamer site , and the PU . 1 autoregulatory site .
we also demonstrate that two other sites contribute to promoter activity in b cells ; an sp1 binding site adjacent to the octamer site , and the pu . 1 autoregulatory site .
O O O O O O O O O O O O B-cell_type I-cell_type O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O B-protein_molecule I-protein_molecule I-protein_molecule O O O