Using transgenic mice , we show that this promoter does not confer any tissue specificity and is active only in a position-dependent manner .
using transgenic mice , we show that this promoter does not confer any tissue specificity and is active only in a position-dependent manner .
O B-multi_cell I-multi_cell O O O O O B-DNA_domain_or_region O O O O O O O O O O O O B-other_name I-other_name O