Biotin Labeled Anti Mouse Factor IX (F9) Antibody – Sheep Polyclonal

This gene encodes a vitamin K-dependent serine protease that plays a critical role in the intrinsic pathway of blood coagulation. The encoded protein is an inactive zymogen that is activated by coagulation factor XIa to generate factor IXa, a heterodimer containing heavy and light chains. In association with factor VIII, membrane phospholipids and calcium ions, factor IXa cleaves the inactive zymogen factor X to generate active factor Xa. Genetic deletion of this gene in mice results in a severe bleeding phenotype. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Apr 2015]

F9: Factor IX is a vitamin K-dependent plasma protein that participates in the intrinsic pathway of blood coagulation by converting factor X to its active form in the presence of Ca(2+) ions, phospholipids, and factor VIIIa. Defects in F9 are the cause of recessive X-linked hemophilia B (HEMB); also known as Christmas disease. Mutations in position 43 (Oxford-3, San Dimas) and 46 (Cambridge) prevents cleavage of the propeptide, mutation in position 93 (Alabama) probably fails to bind to cell membranes, mutation in position 191 (Chapel-Hill) or in position 226 (Nagoya OR Hilo) prevent cleavage of the activation peptide. Defects in F9 are the cause of thrombophilia due to factor IX defect (THPH8). A hemostatic disorder characterized by a tendency to thrombosis. Belongs to the peptidase S1 family.

Protein type: Secreted, signal peptide; Secreted; Protease; EC 3.4.21.22

Cellular Component: extracellular region

Molecular Function: peptidase activity; hydrolase activity; serine-type peptidase activity; serine-type endopeptidase activity; calcium ion binding; catalytic activity

Biological Process: hemostasis; blood coagulation; proteolysis