一般描述
Factor V, a glycoprotein is usually seen in the alpha granules of platelets and in plasma.
Factor Va is the activated form of factor V and the cofactor of Xa. It is a component of the prothrombinase complex.
生化/生理作用
Factor V is a key component in blood coagulation systems, where deficiencies can inhibit thrombin generation and affect hemostasis. It has been used in studies of coagulopathic bleeding which occurs following injury and is a leading cause of hospital deaths.
Factor Va serves as a receptor and positive effector of factor Xa. Hence it can efficiently help in the conversion of prothrombin to thrombin.
外形
Aqueous solution containing 50% (v/v) glycerol and 5mM CaCl2
其他说明
One unit is equivalent to the Factor V activity in 1.0 mL of normal human plasma at pH 7.4 at 37 °C.
View this factors role in the Coagulation Cascade
免责声明
RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.
储存分类代码
10 - Combustible liquids
WGK
WGK 2
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
高风险级别生物产品--人源产品
Less Common Congenital Disorders of Hemostasis
Consultative Hemostasis and Thrombosis, 60-78 (2013)
The factor V activation paradox
Orfeo T, et al.
The Journal of Biological Chemistry, 279(19), 19580-19591 (2004)
Sandro B Rizoli et al.
The Journal of trauma, 71(5 Suppl 1), S427-S434 (2011-12-17)
Coagulopathic bleeding is a leading cause of in-hospital death after injury. A recently proposed transfusion strategy calls for early and aggressive frozen plasma transfusion to bleeding trauma patients, thus addressing trauma-associated coagulopathy (TAC) by transfusing clotting factors (CFs). This strategy
Eliza A Ruben et al.
Blood, 137(22), 3137-3144 (2021-03-09)
Coagulation factor V (fV) is the precursor of fVa, which, together with fXa, Ca2+, and phospholipids, defines the prothrombinase complex and activates prothrombin in the penultimate step of the coagulation cascade. We solved the cryogenic electron microscopy (cryo-EM) structures of
Eliza A Ruben et al.
Blood, 139(24), 3463-3473 (2022-04-16)
The intrinsic and extrinsic pathways of the coagulation cascade converge to a common step where the prothrombinase complex, comprising the enzyme factor Xa (fXa), the cofactor fVa, Ca2+ and phospholipids, activates the zymogen prothrombin to the protease thrombin. The reaction
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