tokens: Within the upstream promoter region of Bcl-x , a potential NF-kappaB -binding sequence was found to support NF-kappaB -dependent transcriptional activation .
folded_tokens: within the upstream promoter region of bcl-x , a potential nf-kappab -binding sequence was found to support nf-kappab -dependent transcriptional activation .
labels: O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-protein_molecule O O O B-protein_complex O O O O O O B-protein_complex O O O O