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Human CellExp TFPI2, human recombinant protein


Product info
Primary Accession P48307
Calculated MW This protein is fused with 6×His tag at the N-terminus, has a calculated MW of 22.7 kDa. The predicted N-terminus is Asp 23. DTT-reduced Protein migrates as 26-32 kDa due to glycosylation.
Additional Info
Gene ID 7980
Gene Symbol TFPI2
Other Names TFPI2, PP5, REF1
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 < 2.5 nM, as measured in 100 µL reaction mixture containing 1.25 ng trypsin, 10 µM substrate, 50 mM Tris, 10 mM CaCl2, 0.15 M NaCl, 0.05% Brij-35, pH 7.5.
Target/Specificity TFPI2
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 20 mM MES and 100 mM NaCl, pH 6.5. Normally Mannitol or Trehalose is added as protectants before lyophilization.
Citations (0)

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Tissue Factor Pathway Inhibitor 2 (TFPI­2), also known as placental protein 5 (PP5) and retinal pigment epithelial cell factor 1 (REF­1), is a member of the Kunitz-type serine proteinase inhibitor family, is a structural homologue of tissue factor pathway inhibitor (TFPI). TFPI2 is highly abundant in the full-term placenta and widely expressed in umbilical vein endothelial cells, liver, placenta, heart, pancreas, and maternal serum at advanced pregnancy. TFPI­2 may play a role in the regulation of plasmin-mediated matrix remodeling. Inhibits trypsin, plasmin, factor VIIa/tissue factor and weakly factor Xa and has no effect on thrombin. Reduced synthesis of TFPI-2 has been related to numerous pathophysiological processes such as inflammation, angiogenesis, atherosclerosis, retinal degeneration and tumor growth / metastasis.


Miyagi Y.,et al.J. Biochem. 116:939-942(1994).
Sprecher C.A.,et al.Proc. Natl. Acad. Sci. U.S.A. 91:3353-3357(1994).
Kamei S.,et al.Biochim. Biophys. Acta 1517:430-435(2001).
Xu Y.,et al.Submitted (JUL-2004) to the EMBL/GenBank/DDBJ databases.
Ota T.,et al.Nat. Genet. 36:40-45(2004).

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$ 225.00
Cat# PBV11102r
(40 western blots)
Availability: 5-7days
Bulk Size
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