tokens: In mobility shift assays , a nuclear factor from THP-1 and U-937 cells was identified that binds to several AP-2 response elements within the B2 promoter , but does not react with AP-2 antibodies , and has a DNA sequence binding affinity profile that differs from AP-2 .
folded_tokens: in mobility shift assays , a nuclear factor from thp-1 and u-937 cells was identified that binds to several ap-2 response elements within the b2 promoter , but does not react with ap-2 antibodies , and has a dna sequence binding affinity profile that differs from ap-2 .
labels: O B-other_name I-other_name I-other_name O O B-protein_family_or_group I-protein_family_or_group O B-cell_line O B-cell_line I-cell_line O O O O O O B-protein_molecule O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-protein_molecule O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-protein_molecule O