Tissue factor pathway inhibitor

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Revision as of 13:23, 14 September 2016 by Michal Harel (talk | contribs)
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Function

Tissue factor pathway inhibitor (TFPI) is a protease inhibitor which inhibits coagulation factor Xa and VIIa[1]. TFPI contains three Kunitz domains. The Kunitz domain is disulfide-rich and is arranged to form a twisted two-stranded antiparallel β sheet followed by an α helix. Kunitz I domain inhibits VIIa coagulation factor while Kunitz II domain inhibits Xa.

Disease

Relevance

The expression of hTFPI-2 in tumors is inversely related to their malignancy[2]. TFPI inhibitors are investigated as therapeutic agents agains hemophilia[3].

Structural highlights

Human tissue factor pathway inhibitor I kunitz domain II (grey) complex with trypsin (pink) and Ca+2 ion (PDB code 1tfx) comp

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3D Structures of tissue factor pathway inhibitor3D Structures of tissue factor pathway inhibitor

Updated on 14-September-2016

1adz – hTFPI-1 kunitz domain II (mutant) – human - NMR
1irh – hTFPI-1 kunitz domain III - NMR
1tfx – hTFPI-1 kunitz domain II + trypsin
1zr0 – hTFPI-2 kunitz domain I + trypsin
4dtg – hTFPI-1 kunitz domain II + antibody
4bqd – hTFPI-1 kunitz domain I + peptide

ReferencesReferences

  1. Kato H. Tissue factor pathway inhibitor; its structure, function and clinical significance. Pol J Pharmacol. 1996 Jan-Feb;48(1):67-72. PMID:9112630
  2. Sierko E, Wojtukiewicz MZ, Kisiel W. The role of tissue factor pathway inhibitor-2 in cancer biology. Semin Thromb Hemost. 2007 Oct;33(7):653-9. PMID:18000791 doi:http://dx.doi.org/10.1055/s-2007-991532
  3. Peterson JA, Maroney SA, Mast AE. Targeting TFPI for hemophilia treatment. Thromb Res. 2016 May;141 Suppl 2:S28-30. doi: 10.1016/S0049-3848(16)30359-0. PMID:27207418 doi:http://dx.doi.org/10.1016/S0049-3848(16)30359-0

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman