tokens: IL-2 induced the binding of Stat 5a and b proteins to the human GASd element .
folded_tokens: il-2 induced the binding of stat 5a and b proteins to the human gasd element .
labels: B-protein_molecule O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O