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F0931

Sigma-Aldrich

Factor Va human

≥1500 units/mg protein

MDL number:
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)

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Sigma-Aldrich

Sigma-Aldrich

F0931

Factor Va human

Sigma-Aldrich

Sigma-Aldrich

F0806

Factor IX human

form

solution

form

aqueous glycerol solution

form

liquid

form

liquid

specific activity

≥1500 units/mg protein

specific activity

≥145 units/mg protein

specific activity

≥20 units/mg protein (clotting assay)

specific activity

≥25,000 PEU/mg protein (clotting assay)

mol wt

168 kDa

mol wt

55 kDa

mol wt

-

mol wt

-

technique(s)

ligand binding assay: suitable

technique(s)

ligand binding assay: suitable

technique(s)

-

technique(s)

-

UniProt accession no.

P12259

UniProt accession no.

P00740

UniProt accession no.

-

UniProt accession no.

-

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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)
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
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

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