ApoA1 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. Recombinant ApoA1 (Cat. # 4693-100) can be used as a positive control. The antibody recognizes ~28 kDa human ApoA1. Reactivity to other species has not been tested.