Clone 93 has been reported to be a rat monoclonal antibody specific to the mouse gene, FCGR3, or Fc receptor, IgG, low affinity III. Other suppliers describe clone 93 to be a rat monoclonal antibody against human FCGR3A, or Fc fragment of IgG receptor IIIa. Indicated applications for antibody clone 93 include flow cytometry and immunoprecipitation.