tokens: The observation that a mutated LT-kappa B construct ( M1-CAT ) was inactive in C81-66-45 , confirmed the importance of NF-kappa B in LT gene expression .
folded_tokens: the observation that a mutated lt-kappa b construct ( m1-cat ) was inactive in c81-66-45 , confirmed the importance of nf-kappa b in lt gene expression .
labels: O O O O B-DNA_molecule I-DNA_molecule I-DNA_molecule I-DNA_molecule O B-DNA_family_or_group O O O O B-cell_line O O O O O B-protein_molecule I-protein_molecule O B-protein_molecule O O O