tokens: The 4-bp mutation of the core Sp1 consensus element abolished footprinting at the site and an antibody super-shift reaction showed that Sp1 is one of the factors binding the consensus site .
folded_tokens: the 4-bp mutation of the core sp1 consensus element abolished footprinting at the site and an antibody super-shift reaction showed that sp1 is one of the factors binding the consensus site .
labels: O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-other_name I-other_name I-other_name O O B-protein_molecule O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O