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affinity biologicals/Factor X Deficient - Depleted Plasma/FX-DP

  • 产品编号: FX-DP
  • 美  元  价: 待定
  • 市  场  价: ¥0.00
  • 品       牌:
  • 产       地: 美国(厂家直采)
  • 公       司: affinitybiologicals
  • 产品分类:
  • 公司分类: Product Family
affinity biologicals/Factor X Deficient - Depleted Plasma/FX-DP
  • affinity biologicals/Factor X Deficient - Depleted Plasma/FX-DP
商品介绍

Description

Factor X Deficient – Depleted Plasma

Factor X Deficient – Depleted Plasma is manufactured from normal citrated human plasma that has been depleted of Factor X by selective affinity immuno-adsorption using antibodies directed towards FX.

Only the highest quality citrated plasma is used as starting material and in many cases the parent plasma is available as control material.  Plasma products are typically buffered with the addition of HEPES to 20mM final concentration and are available in 1ml vials to litre quantities.  Our Factor X Deficient – Depleted Plasma can be used for further manufacturing or research use only applications.


Product Code: FX-DP

Presentation:  Frozen Factor X Deficient – Depleted Plasma

Preparation/Handling:  Thaw 1 ml vials in 37oC water bath for 5 minutes; for bulk volumes, thawing time will be dependent on bottle size.

Storage and Stability:  Plasma is shipped frozen and should be stored below -60oC. Product is stable until date stated on vial label when stored at -60oC. Once thawed, plasma is stable for 4 hours at 2-8oC in original vial.

Certificate of Analysis:  available upon request


Description of Factor X (FX)

Factor X (FX, Stuart Factor) is a vitamin K-dependent glycoprotein produced in the liver. The concentration of FX in plasma is ~10 μg/ml (~170 nM). Factor X is expressed as a two-chain molecule with a molecular weight of 59 kDa. The light chain (17 kDa) of FX contains a calcium-binding domain consisting of one hydroxy-aspartic acid and 11 γ-carboxyglutamic acid (gla) residues. These residues allow F.X to bind to membranes that contain acidic phospholipids in a calcium dependent manner. This is followed by two EGF-like domains. The heavy chain of FX (42 kDa) consists of the catalytic domain, carbohydrate and the activation peptide. Activation of FX to the active enzyme (FXa) results from cleavage at residue Arg52 in the heavy chain of F.X by a complex of F.IXa, cofactor VIIIa, calcium and negatively charged phospholipid surface (the tenase complex), or by the F.VIIa-tissue factor complex. Both activation pathways result in the release of the activation peptide from the N-terminal of the heavy chain. The FXa generated is a serine protease responsible for the activation of prothrombin to thrombin in the presence of a phospholipid membrane, calcium and cofactor Va. The activity of FXa in plasma is inhibited by antithrombin (ATIII), α1antitrypsin, α2macroglobulin and tissue factor pathway inhibitor (TFPI). The inhibitory activity of ATIII is stimulated approximately 1000-fold by heparin1-3.

References and Reviews

  1. Ichinose A, Davie EW; The Blood Coagulation Factors: Their cDNAs, Genes, and Expression; in Hemostasis and Thrombosis, 3rd Edition, eds. RW Colman, J Hirsh, VJ Marder and EW Salzman, pp 19-54, J.B. Lippincott Co., Philadelphia PA, USA, 1994.
  2. Steinberg M, Nemerson Y; The Activation of Factor X; in Hemostasis and Thrombosis, eds. RW Colman, J Hirsh, VJ Marder and EW Salzman, pp 91-99, J.B. Lippincott Co., Philadelphia PA, USA, 1982.
  3. Ellis V, Scully M, MacGregor I, Kakkar V; Inhibition of Human Factor Xa by Various Plasma Protease Inhibitors; Biochimica et Biophysica Acta 701, pp 24-31, 1982.

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Affinity Biologicals,Inc.是全球范围内用于血栓形成和止血研究与诊断的产品的主要制造商。我们的产品包括广泛的抗体,结合物,用于人类和动物分析物免疫测定的抗体对,完整的ELISA试剂盒的VisuLize系列以及包括VisuDep免疫缺陷因子缺乏血浆,VisuCal校准血浆的全系列人类血浆产品和VisuCon控制血浆。服务包括蛋白质纯化,抗体生产,测定开发,定制制造(包括定制冻干和能力验证材料)。


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affinity biologicals的ELISA的配对对抗体集– EIA

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