This 183-bp region was both cell type specific and responsive to two distinct stimuli , lipopolysaccharide and dibutyryl cAMP , known to regulate B7 . 1 expression .
this 183-bp region was both cell type specific and responsive to two distinct stimuli , lipopolysaccharide and dibutyryl camp , known to regulate b7 . 1 expression .
O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O O O B-lipid O B-nucleotide I-nucleotide O O O O B-protein_molecule I-protein_molecule I-protein_molecule O O