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Human CellExp TFPI, human recombinant protein


Product info
Primary Accession P10646
Calculated MW This protein is fused with 6×His tag at the C-terminus, has a calculated MW of 30 kDa. The predicted N-terminus is Asp 29. DTT-reduced Protein migrates as 41-45 kDa due to glycosylation.
Additional Info
Gene ID 7035
Gene Symbol TFPI
Gene Source Human
Source HEK293 cells
Assay&Purity SDS-PAGE; ≥95%
Assay2&Purity2 N/A;
Recombinant Yes
Results Measured by its ability to inhibit trypsin cleavage of a fluorogenic peptide substrate, Mca - RPKPVE - Nval – WRK (Dnp) - NH2. The IC50 value is < 0.35 nM, as measured in 100 µl reaction mixture containing 1.25 ng trypsin, 10 µM substrate, 50 mM Tris, 10 mM CaCl2, 150 mM NaCl, 0.05% Brij-35 (w/v), pH 7.5.
Target/Specificity TFPI
Application Notes Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.
Format Lyophilized
Storage -20°C; Lyophilized from 0.22 µm filtered solution in PBS, pH 7.4. Normally Mannitol or Trehalose is added as protectants before lyophilization.
Citations (0)

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Tissue factor pathway inhibitor (TFPI) also known as Extrinsic pathway inhibitor (EPI), Lipoprotein - associated coagulation inhibitor (LACI), is a plasma proteinase inhibitor synthesized by vascular endothelial cells and part of it is associated with glycosaminoglycans of these cells. TFPI is a single-chain polypeptide which can reversibly inhibit Factor Xa (Xa) and Thrombin (Factor IIa). TFPI is a secreted protein with a N­terminal acidic region, three Kunitz (K) domains separated with by two linker regions, and a C­terminal basic region. The first K domain inhibits coagulation factor VIIa complexed to tissue factor (TF); The second K domain inhibits factor Xa; The third K domain binds to heparin; The C­terminal basic region may have several functions. For example, it plays an important role in binding of TFPI to cell surfaces.


Wun T.-C.,et al.J. Biol. Chem. 263:6001-6004(1988).
Girard T.J.,et al.Thromb. Res. 55:37-50(1989).
van der Logt C.P.E.,et al.Biochemistry 30:1571-1577(1991).
Girard T.J.,et al.J. Biol. Chem. 266:5036-5041(1991).
Chang J.-Y.,et al.Submitted (AUG-1997) to the EMBL/GenBank/DDBJ databases.

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$ 195.00
Cat# PBV11074r
(40 western blots)
Availability: 5-7days
Bulk Size
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