Phospho-VASP Antibody Host:Rabbit Antibody Type:Polyclonal Species Reactivity:Human, mouse, rat Application:Western blot Western blotting (0.5-4 μg/ml) and Immunohistochemistry. However, the optimal concentrations should be determined individually. The antibody recognizes 51 kDa phosphorylated VASP from samples of human, mouse, and rat origins. Reactivity to other species has not been tested.