Key features and details
- Expression system: Native
- Purity: > 95% SDS-PAGE
- Active: Yes
- Suitable for: SDS-PAGE, Functional Studies
Product nameNative human Factor IX/PTC protein
See all Factor IX/PTC proteins and peptides
Biological activity<1% Factor IXa activity. Assay is performed to determine percent contaminating IXa activity. IXa activity is based on a IXa standard curve. Chromagenic assay uses Spectrozyme-IXa (American Diagnostica) as substrate. Active site blocked by EGR.
Purity> 95 % SDS-PAGE.
Protein lengthFull length protein
Amino acids47 to 461
Our Abpromise guarantee covers the use of ab81593 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Preparation and Storage
Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
Constituents: 0.476% HEPES, 0.87% Sodium chloride
This product is an active protein and may elicit a biological response in vivo, handle with caution.
- Christmas Disease
- Christmas factor
- Coagulant factor IX
FunctionFactor IX is a vitamin K-dependent plasma protein that participates in the intrinsic pathway of blood coagulation by converting factor X to its active form in the presence of Ca(2+) ions, phospholipids, and factor VIIIa.
Tissue specificitySynthesized primarily in the liver and secreted in plasma.
Involvement in diseaseDefects in F9 are the cause of recessive X-linked hemophilia B (HEMB) [MIM:306900]; also known as Christmas disease.
Note=Mutations in position 43 (Oxford-3, San Dimas) and 46 (Cambridge) prevents cleavage of the propeptide, mutation in position 93 (Alabama) probably fails to bind to cell membranes, mutation in position 191 (Chapel-Hill) or in position 226 (Nagoya OR Hilo) prevent cleavage of the activation peptide.
Defects in F9 are the cause of thrombophilia due to factor IX defect (THR-FIX) [MIM:300807]. A hemostatic disorder characterized by a tendency to thrombosis.
Sequence similaritiesBelongs to the peptidase S1 family.
Contains 2 EGF-like domains.
Contains 1 Gla (gamma-carboxy-glutamate) domain.
Contains 1 peptidase S1 domain.
DomainCalcium binds to the gamma-carboxyglutamic acid (Gla) residues and, with stronger affinity, to another site, beyond the Gla domain.
modificationsActivated by factor XIa, which excises the activation peptide.
The iron and 2-oxoglutarate dependent 3-hydroxylation of aspartate and asparagine is (R) stereospecific within EGF domains.
- Information by UniProt
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab81593 has been referenced in 1 publication.
- Fischer M et al. Novel in vitro inhibitory functions of potato tuber proteinaceous inhibitors. Mol Genet Genomics 290:387-98 (2015). PubMed: 25260821