Thus , the DRA promoter discriminates against OTF-1 activation at the level of DNA binding in the glioblastoma line .
thus , the dra promoter discriminates against otf-1 activation at the level of dna binding in the glioblastoma line .
O O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule O O O O O O O O O B-cell_line I-cell_line O