Listed are ELISA Kits for the detection of R-spondin family, member 4, an alias name of R-spondin 4. The human protein, encoded by the gene RSPO4, is 234 amino acid residues long and has a mass of 26,171 daltons. However, there are up to 2 reported isoforms. It is a member of the R-spondin family. This protein is reported to have a secreted cellular localization, and is glycosylated. The gene is associated with Nail disorder, non-syndromic congenital, 4. For this target protein, ELISA kits with the following species reactivities are available: human and mouse. This target may also be known as: R-spondin family member 4, hRspo4, roof plate-specific spondin-4, and C20orf182.