F9 Antibody

Background:

This gene encodes vitamin K-dependent coagulation factorIX that circulates in the blood as an inactive zymogen. This factoris converted to an active form by factor XIa, which excises theactivation peptide and thus generates a heavy chain and a lightchain held together by one or more disulfide bonds. The role ofthis activated factor IX in the blood coagulation cascade is toactivate factor X to its active form through interactions with Ca+2ions, membrane phospholipids, and factor VIII. Alterations of thisgene, including point mutations, insertions and deletions, causefactor IX deficiency, which is a recessive X-linked disorder, alsocalled hemophilia B or Christmas disease.