At least two 21 bp repeats were required for high levels of AP-2 activation and mutagenesis of the AP-2 consensus binding sequences in the 21 bp repeats eliminate this activation .
at least two 21 bp repeats were required for high levels of ap-2 activation and mutagenesis of the ap-2 consensus binding sequences in the 21 bp repeats eliminate this activation .
O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-protein_molecule O O O O O B-protein_molecule O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O