Protein Z, protein Z-dependent protease inhibitor (serpinA10), and the acute-phase response
نویسندگان
چکیده
منابع مشابه
The protein Z/protein Z-dependent protease inhibitor complex.
Protein Z (PZ) is a vitamin K-dependent factor identified in human plasma in 1984 but it has no enzymatic activity. It is a cofactor of a serpin, the protein Z-dependent protease inhibitor (ZPI), and the complex PZ/ZPI inhibits activated factor X on phospholipid surfaces. In mice, the disruption of PZ or ZPI gene is asymptomatic, but enhances the thrombotic phenotype and mortality of other thro...
متن کاملProtein Z and protein Z-dependent protease inhibitor. Determinants of levels and risk of venous thrombosis.
To assess the potential roles of protein Z (PZ) and protein Z-dependent protease inhibitor (ZPI) in venous thrombosis, their plasma levels were measured in 426 individuals with venous thrombosis and 471 control individuals participating in the Leiden Thrombophilia Study. A relationship between the level of PZ or ZPI and venous thrombosis was not detected in the overall case-control study. PZ an...
متن کاملCharacterization of the protein Z-dependent protease inhibitor.
Protein Z-dependent protease inhibitor (ZPI) is a 72-kd member of the serpin superfamily of proteinase inhibitors that produces rapid inhibition of factor Xa in the presence of protein Z (PZ), procoagulant phospholipids, and Ca(++) (t(1/2) less than 10 seconds). The rate of factor Xa inhibition by ZPI is reduced more than 1000-fold in the absence of PZ. The factor Xa-ZPI complex is not stable t...
متن کاملStructural basis for catalytic activation of protein Z-dependent protease inhibitor (ZPI) by protein Z.
The anticoagulant serpin, protein Z-dependent protease inhibitor (ZPI), is catalytically activated by its cofactor, protein Z (PZ), to regulate the function of blood coagulation factor Xa on membrane surfaces. The X-ray structure of the ZPI-PZ complex has shown that PZ binds to a unique site on ZPI centered on helix G. In the present study, we show by Ala-scanning mutagenesis of the ZPI-binding...
متن کاملProtein Z-dependent protease inhibitor deficiency produces a more severe murine phenotype than protein Z deficiency.
Protein Z (PZ) is a plasma vitamin K-dependent protein that functions as a cofactor to dramatically enhance the inhibition of coagulation factor Xa by the serpin, protein Z-dependent protease inhibitor (ZPI). In vitro, ZPI not only inhibits factor Xa in a calcium ion-, phospholipid-, and PZ-dependent fashion, but also directly inhibits coagulation factor XIa. In murine gene-deletion models, PZ ...
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ژورنال
عنوان ژورنال: Journal of Thrombosis and Haemostasis
سال: 2013
ISSN: 1538-7933
DOI: 10.1111/jth.12084