DescriptionFactor V Paired Antibody SetAffinity’s Factor V Paired Antibody Set consists of matched capture and detecting antibodies that have been titrated and optimized for use in sandwich style ELISA assays. The product as provided contains sufficient capture and detecting antibodies for five full 96-well microplates and contains a detailed protocol sheet containing directions for use, recipes for solutions and sources for additional materials required. This Factor V Paired Antibody Set is intended to facilitate the end user in establishing an “in-house” immunoassay for research purposes only and must not be used for diagnostic applications.  Assay validation is the responsibility of the end user.Product Code: FV-EIASupplied Materials: Capture Antibody (FV-EIA-C): One yellow-capped vial containing 0.5 ml of polyclonal affinity purified anti-Factor V antibody for coating plates.Detecting Antibody (FV-EIA-D):  One red-capped tube containing 0.5 ml of peroxidase conjugated affinity-purified polyclonal anti-Factor V antibody for detection of captured Factor V.Related Products:  VisuLize Buffer PakSpecies Cross Reactivity: View ChartProduct Datasheet: Factor V (F5 FV) Antigen Matched Pair Antibody Set for ELISA - FV-EIADescription of Factor VFactor V (formerly referred to as accelerator globulin and labile factor) is a large glycoprotein (320 kDa) that is produced in the liver.  The gene that encodes factor V (FV) is located on chromosome 1.  A congenital deficiency of FV is a hemorrhagic disorder inherited as an autosomal recessive disease.  The concentration of FV in plasma is typically 10 μg/mL.  FV is a pro-cofactor that is activated through limited proteolysis by thrombin, or by activated factor X in the presence of phospholipid surface.  Other physiologic activators of FV include plasmin, neutrophil elastase and platelet calpain.  The activated cofactor (FVa) is an essential component of the prothrombin activator complex, which consists of FVa, activated factor X, calcium and anionic phospholipid surface.  The intact prothrombinase complex activates prothrombin to thrombin at a rate 300,000-fold greater than activated factor X alone.  In a positive feedback loop, the thrombin generated accelerates its own generation by activating more FV to FVa.  Thrombin also acts to down-regulate FVa indirectly by activating Protein C, which inactivates FVa cofactor activity1-3.References and ReviewsKane WH, Davie EW; Blood Coagulation Factors V and VIII: Structural and functional similarities and their relationship to hemorrhagic and thrombotic disorders.  Blood 71:539, 1988.Hoyer, LW, Wyshock EG, Colman RW, in Hemostasis and Thrombosis, 3rd Edition, eds. RW Colman, J Hirsh, VJ Marder and EW Salzman, pp. 109-133, J.B. Lippincott Co., Philadelphia, 1994.Nesheim ME, Katzmann JA, Tracy PB, Mann KG; in Methods in Enzymology 80:249, 1980.