FIG. 3.

Levels of dsRNA-induced p54 and p56 protein expression in tlr3^−/−, pkr^−/−, and stat1^−/− mice. Eight hours after injection with PBS or dsRNA, livers and lungs were isolated from wt, tlr3^−/−, pkr^−/−, and tlr3^−/− pkr^−/− mice (A) or wt and stat1^−/− mice (B). Extracts were prepared from the organs and used for Western blot assays with antibodies against murine p54 and p56.