tokens: Electrophoretic mobility-shift assays revealed that recombinant IL-2 increased NF-kappaB binding activity in nuclear extracts of the leukemia cells , and Northern blot analysis showed that IL-2 increased the abundance of mRNAs encoding the NF-kappaB components c-Rel and KBF1 in these cells .
folded_tokens: electrophoretic mobility-shift assays revealed that recombinant il-2 increased nf-kappab binding activity in nuclear extracts of the leukemia cells , and northern blot analysis showed that il-2 increased the abundance of mrnas encoding the nf-kappab components c-rel and kbf1 in these cells .
labels: B-other_name I-other_name I-other_name O O O B-protein_molecule O B-protein_complex O O O B-cell_component I-cell_component O O B-cell_type I-cell_type O O B-other_name I-other_name I-other_name O O B-protein_molecule O O O O O O O B-protein_complex O B-protein_molecule O B-protein_molecule O O O O