GMA-121

Background

Factor IX (FIX) is a vitamin K-dependent zymogen that plays an essential role in the coagulation cascade leading to thrombus formation. In the presence of calcium, activated Factor IX (FIXa) complexes with Factor VIIIa on phospholipid surfaces to create the tenase complex, which converts Factor X to its activated form. Defect or deficiencies in FIX lead to the X-linked recessive bleeding disorder hemophilia B. GMA-121 binds to FIX and detects the light chain of FIXa in both ELISA and Western blot format.