Creative Biolabs Human IgG1 antimouse CAIX (clone MSC3) - Western blot analysis of TAB-1458CL was performed by loading Recombinant Human Carbonic Anhydrase IX protein (His tag). TAB-1458CL incubation concentration: 2 ng/μL.The secondary antibody: HRP-Anti-Human IgG (H+L)Lane 1: Reduced antigen (0.