Neuropilin-1 Antibody Host:Rabbit Antibody Type:Polyclonal Species Reactivity:Mouse, rat Application:Western blot Western blotting (0.5-4 μg/ml). However, the optimal concentrations should be determined individually. The antibody recognizes ~100-130 kDa band of Neuropilin 1 in samples from human, mouse and rat, origins. A lower band ~50-70 kDa can also be detected, presumably to be the cleavage fragment of Neuropilin-1. Reactivity to other species has not been tested.