tokens: We find that a short enhancer element containing the NF-kappa B binding site from the interleukin-2 receptor alpha-chain gene ( IL-2R alpha ) is preferentially activated in T cells .
folded_tokens: we find that a short enhancer element containing the nf-kappa b binding site from the interleukin-2 receptor alpha-chain gene ( il-2r alpha ) is preferentially activated in t cells .
labels: O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule O O O O B-protein_subunit I-protein_subunit O O O O O B-cell_type I-cell_type O