A majority of suppliers have reported the clone NH3 to be a mouse monoclonal antibody specific to the human gene, ACTB, or Actin beta. Other suppliers describe clone NH3 to be a mouse monoclonal antibody against human ACTG1, or actin gamma 1. Suppliers have reported additional species reactivites for the target of this clone, including mouse, rabbit and rat. Indicated applications for antibody clone NH3 include Western blot, immunohistochemistry, flow cytometry, immunofluorescence, ELISA, and immunocytochemistry.