Clone CELA3B/1257 is a mouse monoclonal antibody specific to the human gene, CELA3B, or Chymotrypsin like elastase 3B. Suppliers have reported additional species reactivites for the target of this clone, including mouse and rat. Indicated applications for antibody clone CELA3B/1257 include immunohistochemistry, flow cytometry, immunofluorescence, ELISA, and immunocytochemistry.