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F0931

Sigma-Aldrich

Factor Va human

≥1500 units/mg protein

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About This Item

MDL number:
UNSPSC Code:
12352202
NACRES:
NA.61

biological source

human

Quality Level

form

solution

specific activity

≥1500 units/mg protein

mol wt

168 kDa

technique(s)

ligand binding assay: suitable

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... F5(2153)

General description

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.

Biochem/physiol Actions

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.

Linkage

View this factors role in the Coagulation Cascade

Unit Definition

One unit is equivalent to the Factor V activity in 1.0 mL of normal human plasma at pH 7.4 at 37 °C.

Physical form

Aqueous solution containing 50% (v/v) glycerol and 5mM CaCl2

Disclaimer

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.

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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The factor V activation paradox
Orfeo T, et al.
The Journal of Biological Chemistry, 279(19), 19580-19591 (2004)
Less Common Congenital Disorders of Hemostasis
Consultative Hemostasis and Thrombosis, 60-78 (2013)
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
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
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

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