tokens: Interleukin 2 ( IL-2 ) induces tyrosine phosphorylation of STATs 3 and 5 ( signal transducer and activator of transcription ) .
folded_tokens: interleukin 2 ( il-2 ) induces tyrosine phosphorylation of stats 3 and 5 ( signal transducer and activator of transcription ) .
labels: B-protein_molecule I-protein_molecule O B-protein_molecule O O B-amino_acid_monomer O O O O O O O O O O O O O O O