Clone HFR1 is a mouse monoclonal antibody specific to the human gene, ERBB4, or Erb-b2 receptor tyrosine kinase 4. This antibody clone has been reported to also recognize the mouse ortholog of the target gene. Indicated applications for antibody clone HFR1 include Western blot, immunohistochemistry, flow cytometry, immunofluorescence, immunocytochemistry, and immunoprecipitation.