In this respect , in the footprinting experiments , OmpR-P bound to the ompS2 regulatory region at 0.8 M , similar to what was observed for the footprinting of OmpR-P on ssrA box A1 boxes .
Thus , OmpR-P would then be allowed to bind at and around the consensus OmpR-binding box , permitting ompS2 expression mostly at high-osmolarity .