Anti-RISC antibodies enable researchers to detect and measure the RISC antigen in biological samples. This target is a reported synonym of the SCPEP1 gene, which encodes serine carboxypeptidase 1. This protein is known to function in proteolysis, among other biological roles. The human version of RISC has a canonical amino acid length of 452 residues and a protein mass of 50.8 kilodaltons, although 2 isoforms have been identified. It is reported to be a secreted protein that is widely expressed in many tissue types. RISC is a member of the Peptidase S10 protein family.