tokens: Since HIV-1 long terminal repeat contains two functional nuclear factor kB ( NF-kB ) regulatory elements , we studied the ability of PMA to induce NF-kB binding activity by different assays .
folded_tokens: since hiv-1 long terminal repeat contains two functional nuclear factor kb ( nf-kb ) regulatory elements , we studied the ability of pma to induce nf-kb binding activity by different assays .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region B-protein_molecule O O O O O O O O O B-other_organic_compound O O B-protein_molecule O O O O O O