Clone 19F5 has been reported to be a mouse monoclonal antibody specific to the human gene, S100A12, or S100 calcium binding protein A12. Other suppliers describe clone 19F5 to be a mouse monoclonal antibody against human SLC9A3, or solute carrier family 9 member A3. Suppliers have reported additional species reactivites for the target of this clone, including rabbit and rat. Indicated applications for antibody clone 19F5 include Western blot, immunohistochemistry, immunofluorescence, ELISA, immunocytochemistry, and immunoprecipitation.