HA-tag

A widely used epitope tag

General Information

The surface glycoprotein hemaglutinin (HA) of the human influenza virus is essential for the infectivity of the virus. The HA-tag corresponds to amino acids 98-106 of this protein and has been widely used as an epitope tag in protein expression vectors. It can be employed for the detection and immunoisolation of proteins using immunoblotting, immunoprecipitation and immunostaining methods and has been shown to have only neglectable influence on the biological properties of the tagged protein.