Clone 31A3 is a mouse monoclonal antibody specific to the human gene, UCHL1, or Ubiquitin C-terminal hydrolase L1. Another name for the gene is PGP9.5. Suppliers have reported additional species reactivites for the target of this clone, including bovine, mouse, porcine, and rat. Indicated applications for antibody clone 31A3 include Western blot, immunohistochemistry, and ELISA.