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Documentos Principais

F9302

Sigma-Aldrich

Factor X Activated (Xa) from bovine plasma

aqueous glycerol solution

Sinônimo(s):

Factor Xa

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About This Item

Número CAS:
Número da licença da enzima:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.54

Formulário

aqueous glycerol solution

Nível de qualidade

atividade específica

≥50 units/mg protein

nº de adesão UniProt

Condições de expedição

wet ice

temperatura de armazenamento

−20°C

Informações sobre genes

cow ... F10(280787)

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Aplicação

Bovine Factor Xa is used for site specific cleavage of recombinant fusion proteins containing an accessible Factor Xa recognition site for removal of affinity tags.
Fusion proteins are commonly expressed with a factor Xa cleavable Ile-Glu (or Asp)-Gly-Arg-↓-X sequence. Typically 1 mg of fusion protein can be incubated with 10 μg of factor Xa for 2.5 hours at 37 °C.

Ações bioquímicas/fisiológicas

Factor Xa catalyzes the hydrolysis of the Arg-Thr and then Arg-Ile bonds in prothrombin to yield active thrombin.
The fairly strict recognition sequence is Ile-Glu (or Asp)-Gly-Arg-↓-X.
It may sometimes cleave at other basic residues, depending on the conformation of the target protein. Factor Xa will not cleave if a proline residue follows the arginine of the recognition sequence.
pH Optimum: 7.6-8.0
Temperature Optimum: 37 °C

propriedades físicas

Factor Xa is a serine endoproteinase and a member of the S1 peptidase family. Factor Xa plays a critical role in the coagulation cascade by catalyzing the proteolytic conversion of prothrombin to active thrombin. Factor Xa′s prothrombin conversion activity is greatly enhanced in vivo when complexed with factor V, calcium ions and phospholipids on the activated platelet surface.
The zymogen form, Factor X, is activated in vivo by two different pathways. The intrinsic pathway utilizes a catalytic complex composed of factor IXa, factor VIII, phospholipids and calcium ions. The extrinsic pathway utilizes a complex of factor VII and tissue factor. The factor X zymogen is a 55 KDa glycoprotein with a light and heavy chain joined by a single disulfide.

Definição da unidade

One unit of activated Factor X will liberate 1.0 μmole of p-nitroanilide from N-benzoyl-L-isoleucyl-L-glutamyl-L-glycyl-L-arginine-p-nitroaniline per minute at pH 8.3 at 37 °C.

Exoneração de responsabilidade

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.

substrato

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Antidotes edge closer to reversing effects of new blood thinners.
Elie Dolgin
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Alexander T Cohen et al.
The New England journal of medicine, 368(6), 513-523 (2013-02-08)
The clinically appropriate duration of thromboprophylaxis in hospitalized patients with acute medical illnesses is unknown. In this multicenter, randomized, double-blind trial, we evaluated the efficacy and safety of oral rivaroxaban administered for an extended period, as compared with subcutaneous enoxaparin
Genmin Lu et al.
Nature medicine, 19(4), 446-451 (2013-03-05)
Inhibitors of coagulation factor Xa (fXa) have emerged as a new class of antithrombotics but lack effective antidotes for patients experiencing serious bleeding. We designed and expressed a modified form of fXa as an antidote for fXa inhibitors. This recombinant
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The Medical letter on drugs and therapeutics, 55(1409), 9-10 (2013-02-06)

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