tokens: Nuclear factor of activated T cells and AP-1 are insufficient for IL-2 promoter activation : requirement for CD28 up-regulation of RE/AP .
folded_tokens: nuclear factor of activated t cells and ap-1 are insufficient for il-2 promoter activation : requirement for cd28 up-regulation of re/ap .
labels: B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group B-cell_type I-cell_type O B-protein_molecule O O O B-protein_molecule O O O O O B-protein_molecule O O B-protein_molecule O