IL-2R alpha transcription is at least in part controlled by two positive regulatory regions , PRRI and PRRII .
il-2r alpha transcription is at least in part controlled by two positive regulatory regions , prri and prrii .
B-protein_molecule I-protein_molecule O O O O O O O O O B-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region O B-DNA_domain_or_region O B-DNA_domain_or_region O