The ELISA kits listed below target PROS1, the symbol for the human gene, protein S. The protein encoded by PROS1 has a predicted amino acid length of 676, a mass of 75.1 kDa, and a secreted subcellular localization. Glycosylation has been reported. Pathologic involvement is reported in Thrombophilia due to protein S deficiency, autosomal dominant. PROS1 may also be known by the following names: PS22, PS21, vitamin K-dependent plasma protein S, protein Sa, protein S (alpha), and vitamin K-dependent protein S, and PS24. Orthologs of the gene, including human, mouse, rat, bovine, primate, and other mammalian are available targets of several ELISA kits.