Oct-4 Antibody Host:Rabbit Antibody Type:Polyclonal Species Reactivity:Human, mouse, rat Application:Western blot, Immunoprecipitation, Immunohistochemistry Western blotting (0.5-4 μg/ml), immunoprecipitation (20 μg/ml) and Immunohistochemistry (20 μg/ml). However, the optimal conditions should be determined individually. The antibody reacts with 45 kDa Oct-4 (also designated Oct-3A) and in a less extent 33 kDa Oct-3B from human, mouse, and rat samples. Rat kidney tissue lysate can be used as a positive control.