Etk/BMX Antibody Host:Rabbit Antibody Type:Polyclonal Species Reactivity:Human, mouse, rat Application:Western blot Western blotting (0.5-4 μg/ml). . However, the optimal concentrations should be determined individually. The antibody recognizes the 50 kDa and 35 kDa cleaved fragments of Etk from samples of human, mouse and rat origins.