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Home |Products|Coagulation Proteins|Human Factor IXa, biotinylated EGR

Human Factor IXa, biotinylated EGR

Cat.-Nr.: HCIXA-0050-BEGR

Description

Factor IXa is produced from its inactive precursor, factor IX, via proteolytic cleavage by factor XIa or the tissue factor/factor VIIa/phospholipid complex. The activation results from the cleavage of two peptide bonds in the factor IX molecule, releasing an activation glycopeptide with an apparent molecular weight of 10,000. The heavy chain of factor IXa (Mr = 28,000) contains the serine protease catalytic domain, while the light chain (Mr = 17,000) contains the membrane binding domain. Factor IXa functions as a serine protease involved in the activation of the zymogen, factor X, to form the enzyme, factor Xa. The factor IXa enzymatic activity is greatly enhanced by inclusion of its cofactor, factor VIIIa, in the presence of calcium ions on a phospholipid surface. Factor IXa is readily inhibited by antithrombin III, and this inhibition is greatly accelerated by the presence of heparin. Factor IXa is not inhibited by DFP. Factor IXa is prepared from highly purified factor IX by activation with factor XIa, as described by Lindquist et al. (5). The factor IXa is further purified by gel filtration, followed by immunoaffinity purification. Factor IXa is also available with the active site irreversibly blocked by the tripeptide chloromethylketone, EGRck, or by the fluorescent inhibitor, Dansyl-EGRck. It is supplied in 50% (vol/vol) glycerol/H2O for storage at -20°C. Purity is assessed by SDS-PAGE analysis. Activity is determined in a one-stage clotting assay.

  • SUPPLIER:

    Haematologic TechnologiesProlytix

  • STATUS:

    In Stock

  • SIZE:

    1 mg

  • Overview

Overview

  • Species: Human
  • Human Factors: Factor IX
  • Additional Attributes: Enzymes (Coagulation)
  • Specific Attributes: biotinylated

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Human Factor IXa-DEGR Human Factor IXa
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