HA Tag Recombinant Mouse mAb (S-5404)

The HA tag (Hemagglutinin tag) is an epitope tag derived from the hemagglutinin (HA) protein of human influenza virus, typically consisting of a 9-amino acid sequence (YPYDVPDYA). Widely used in molecular biology and biochemistry due to its high immunogenicity and specificity, this tag is primarily employed for the detection, purification, and localization of proteins. By genetically fusing the HA tag to the N- or C-terminus of a target protein, high-affinity anti-HA antibodies can be utilized in experiments such as Western blot, co-immunoprecipitation (Co-IP), and immunofluorescence (IF) to effectively track the expression, subcellular localization, and interactions of the target protein. With its small size, high sensitivity, and minimal interference with protein structure, the HA tag has become an essential tool in protein research.