A majority of suppliers have reported the clone 2-25LE to be a mouse monoclonal antibody specific to the human gene, MUC5AC, or Mucin 5AC, oligomeric mucus/gel-forming. Other suppliers describe clone 2-25LE to be a mouse monoclonal antibody against human FUT3, or fucosyltransferase 3 (Lewis blood group). Indicated applications for antibody clone 2-25LE include Western blot, immunohistochemistry, immunofluorescence, and ELISA.