tokens: The interleukin-2 IL-2 receptor beta-chain ( IL-2Rbeta ) is an essential component of the receptors for IL-2 and IL-15 .
folded_tokens: the interleukin-2 il-2 receptor beta-chain ( il-2rbeta ) is an essential component of the receptors for il-2 and il-15 .
labels: O B-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region O B-protein_domain_or_region O O O O O O O O O B-protein_molecule O B-protein_molecule O