MAP-1 Antibody Host:Rabbit Antibody Type:Polyclonal Species Reactivity:Human, mouse Application:Western blot Western blotting (1-4 μg/ml). However, the optimal concentrations should be determined individually. Jurkat cell lysate (Cat.# 2401-100) and mouse small intestine tissue lysate (Cat.# 2601-100) can be used as positive controls. The antibody recognizes 39 kDa MAP-1 from samples of human, mouse and rat origins. Reactivity to other species has not been determined. In human samples, an additional ~78 kDa dimer can be detected in Jurkat cell lysate. In mouse sample, an additional ~33 kDa cleavage fragment can also be detected in mouse small intestine tissue lysate.