Clone AE-1 has been reported to be a mouse monoclonal antibody specific to the human gene, ADRB2, or Adrenoceptor beta 2. Other suppliers describe clone AE-1 to be a mouse monoclonal antibody against human KRT77, or keratin 77. Indicated applications for antibody clone AE-1 include Western blot, immunohistochemistry, flow cytometry, immunofluorescence, and ELISA.