The first intron acted as a strong transcriptional activator in a position-dependent manner and with no cell-type specificity .
the first intron acted as a strong transcriptional activator in a position-dependent manner and with no cell-type specificity .
O B-DNA_domain_or_region I-DNA_domain_or_region O O O O B-other_name I-other_name O O O O O O O B-other_name I-other_name O