Clone SPM354 has been reported to be a mouse monoclonal antibody specific to the human gene, S100A1, or S100 calcium binding protein A1. Other suppliers describe clone SPM354 to be a mouse monoclonal antibody against human S100B, or S100 calcium binding protein B. Suppliers have reported additional species reactivites for the target of this clone, including bovine, mouse and rat. Indicated applications for antibody clone SPM354 include Western blot, immunohistochemistry, flow cytometry, immunofluorescence, ELISA, immunocytochemistry, and immunoprecipitation.