tokens: The finding of Tax mutants segregating these two pathways suggested that the NF-kappaB pathway was essential for IL-2 -independent growth of CTLL-2 cells while the CRE pathway was unnecessary .
folded_tokens: the finding of tax mutants segregating these two pathways suggested that the nf-kappab pathway was essential for il-2 -independent growth of ctll-2 cells while the cre pathway was unnecessary .
labels: O O O B-protein_molecule O O O O O O O O B-protein_complex O O O O B-protein_molecule O O O B-cell_type I-cell_type O O B-DNA_domain_or_region O O O O