Mouse Anti-Human Orai1 (extracellular) Antibody (#ALM-025) is a highly specific monoclonal antibody directed against an extracellular epitope of the human Orai1 channel. The antibody can be used in western blot, immunocytochemical and indirect flow cytometry applications and was designed to recognize Orai1 from human samples only._x005F Mouse Anti-Human Orai1 (extracellular)-Biotin Antibody (#ALM-025-B) is directly labeled with biotin. Strepavidin tagged with HRP or with a fluorescent probe can then be used to detect the protein. The biotin/strepavidin system is ideal for minimizing cross-reactivity when same species antibodies are simultaneously used. Mouse Anti-Human Orai1 (extracellular)-Biotin Antibody has been tested in western blot and direct flow cytometry applications and is specially suited to experiments requiring simultaneous labeling of different markers.