Two other sites display disparate effects on IL-2 gene expression in different T leukemia cell lines : the distal purine box ( -291 to -277 ) and the proximal purine box sites ( -145 to -128 ) .
two other sites display disparate effects on il-2 gene expression in different t leukemia cell lines : the distal purine box ( -291 to -277 ) and the proximal purine box sites ( -145 to -128 ) .
O O O O O O O B-protein_molecule O O O O B-cell_line I-cell_line I-cell_line I-cell_line O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region 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 B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O