Egr-1 and the serum response factor were found to interact specifically with the intronic sequence at +265 and +448 , respectively .
egr-1 and the serum response factor were found to interact specifically with the intronic sequence at +265 and +448 , respectively .
O O O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O