A majority of suppliers have reported the clone SPM563 to be a mouse monoclonal antibody specific to the human gene, NEFH, or neurofilament heavy. Other suppliers describe clone SPM563 to be a mouse monoclonal antibody against human NCAM1, or neural cell adhesion molecule 1. Suppliers have reported additional species reactivites for the target of this clone, including chicken/bird, mouse, porcine, and rat. Indicated applications for antibody clone SPM563 include Western blot, immunohistochemistry, flow cytometry, immunofluorescence, and ELISA.