Site-directed mutagenesis of the critical guanine nucleotides in the kappaB- Sp1 element documented the essential role of this site in activation-dependent fas promoter induction .
site-directed mutagenesis of the critical guanine nucleotides in the kappab- sp1 element documented the essential role of this site in activation-dependent fas promoter induction .
O O O O O B-nucleotide I-nucleotide O O B-DNA_domain_or_region B-protein_molecule O O O O O O O O O B-other_name I-other_name I-other_name I-other_name O