tokens: The importance of NF-kappaB sites was confirmed by using vectors containing wild-type or mutant kappaB sites in a heterologous promoter .
folded_tokens: the importance of nf-kappab sites was confirmed by using vectors containing wild-type or mutant kappab sites in a heterologous promoter .
labels: O O O B-protein_complex O O O O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O