tokens: The interleukin 2 receptor alpha-chain ( IL-2R alpha ) gene is a key regulator of lymphocyte proliferation .
folded_tokens: the interleukin 2 receptor alpha-chain ( il-2r alpha ) gene is a key regulator of lymphocyte proliferation .
labels: O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule I-protein_molecule O O O O O O O B-other_name I-other_name O