Within this region , an NF-kappaB site at -59 to -50 and its adjacent 20-base pair upstream sequence were demonstrated to play a critical role for the IL-9 promoter activity .
within this region , an nf-kappab site at -59 to -50 and its adjacent 20-base pair upstream sequence were demonstrated to play a critical role for the il-9 promoter activity .
O O O O O B-protein_complex O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O B-protein_molecule O O O