Bcl-B Antibody Host:Rabbit Antibody Type:Polyclonal Species Reactivity:Human Application:Western blot Western blotting (0.5-4 μg/ml). However, the optimal concentrations should be determined individually. Jurkat cell lysate (Cat.# 2401-100) and rat kidney tissue lysate (Cat.# 2702-100) can be used as positive controls. The antibody recognizes 21 kDa Bcl-B from samples of human and rat origins. Reactivity to other species has not been tested.