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You are here:Home » Antibodies » Antibodies-Coagulation Factors » Anti -Factor IX (HRP)

Anti -Factor IX (HRP)


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Clone Host Grade Applications
Polyclonal Sheep Affinity Purified E
Factor IX (F.IX, Christmas Factor) is a vitamin K-dependent
glycoprotein produced in the liver. Plasma concentration of F.IX is normally around 5ug/ml (87nM) in plasma. The biological
importance of F.IX is demonstrated in Haemophilia B (Christmas disease), an X-linked congenital bleeding disease resulting from a quantitative (low activity and low antigen) or qualitative (low activity and normal antigen) defect in F.IX function. In its zymogen form F.IX is a single chain molecule of 55,000 daltons. It contains two EGF-like domains and an amino-terminal domain containing 12 gamma-carboxy-glutamic acid (Gla) residues. These Gla residues allow F.IX to bind divalent metal ions and participate in calcium-dependent binding interactions. The activation of F.IX occurs by limited proteolysis in the presence of calcium by activated factor XI (FXIa) and/or by a complex of VIIa/tissue factor/phospholipid and activated Factor X between residues Arg146- Ala147 and between Arg180-Val181. The terminal activated product in either case is F.IXab, a two-chain enzyme consisting of a heavy chain (28kD), a light chain (18kD) and an activation peptide product of 11kD. F.IX can also be cleaved into inactive products by thrombin and by elastase. The activity of F.IXab in plasma is inhibited by antithrombin and this inhibition is accelerated approximately 1000-fold in the presence of optimal concentrations of heparin(1-3).
Catalog #F0017-08B
ApplicationsSuitable for use in ELISA and Immunoelectrophoresis. Other applications not tested.
Recommended DilutionOptimal dilutions to be determined by the researcher.
Rz ratio (Reinheitszahl, A403/A280) 0.47 as determined spectrophotometrically.
Storage and StabilityMay be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Labeled with horseradish peroxidase (HRP). Sodium azide is a potent inhibitor of peroxidase and should not be added to HRP conjugates. HRP conjugates are sensitive to light.
Clone TypePolyclonal
FormSupplied as a liquid in a buffered stabilizer solution, 50% glycerol. Labeled with horseradish peroxidase (HRP).
PurityPurified by affinity chromatography.
ImmunogenHuman Factor IX isolated from plasma.
SpecificityRecognizes human Factor IX.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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