IL-2 responsiveness , on the other hand , depends on a 78-nucleotide segment 1 . 3 kilobases upstream of the major transcription start site .
il-2 responsiveness , on the other hand , depends on a 78-nucleotide segment 1 . 3 kilobases upstream of the major transcription start site .
B-protein_molecule O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O