Anti-HA Tag Antibody

This mouse monoclonal IgG antibody from Antibodies.com is raised against the hemagglutinin (HA) tag, a nine-amino-acid YPYDVPDYA epitope widely used as a recombinant fusion partner for protein detection, immunoprecipitation, and affinity purification across mammalian, insect, and yeast expression systems. Supplied as a 200 µl liquid aliquot in a single-use vial, the unconjugated reagent is validated for western blot, immunofluorescence, and immunoprecipitation workflows with HA-tagged constructs expressed in transiently or stably transfected cells. The antibody recognizes the linear HA epitope in both native and denatured protein contexts, supporting downstream chemiluminescent, fluorescent, or enzyme-based secondary detection schemes. Store aliquots frozen at -20 °C in small working volumes to limit freeze-thaw cycles, and protect from light when a fluorescent secondary detection step is planned. Each lot is shipped with IgG isotype information for proper isotype control selection in immunofluorescence and IP experiments.