tokens: Since most B cell clones immortalized with EBV virus can be induced to produce interleukin-2 , a typical T cell cytokine , we studied the role of different elements of the IL-2 promoter in such clones by transfection .
folded_tokens: since most b cell clones immortalized with ebv virus can be induced to produce interleukin-2 , a typical t cell cytokine , we studied the role of different elements of the il-2 promoter in such clones by transfection .
labels: O O B-cell_line I-cell_line I-cell_line O O B-virus I-virus O O O O O B-protein_molecule O O O B-protein_molecule I-protein_molecule I-protein_molecule O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O