《英文msh词典》Autoprothrombin II
[同义词] Autoprothrombin II
[主题词] Factor IX
[中文释义] 自凝血酶原Ⅱ
[英文释义] Storage-stable blood coagulation factor acting in the intrinsic pathway. Its activated form,IXa,forms a complex with factor VIII and calcium on platelet factor 3 to activate factor X to Xa. Deficiency of factor IX results in HEMOPHILIA B (Christmas Disease).