Tissue Factor Structure and Function

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Tissue Factor Structure and Function

Tissue factor (TF) is an integral membrane protein that is essential to life. It is a component of the factor VIIa-TF complex enzyme and plays a primary role in both normal hemostasis and thrombosis. With a vascular injury, TF becomes exposed to blood and binds plasma factor VIIa, and the resulting complex initiates a series of enzymatic reactions leading to clot formation and vascular sealing....

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TFPI is a multivalent, Kunitz-type proteinase inhibitor, which, due to alternative mRNA splicing, is transcribed in three isoforms: TFPIalpha, TFPIdelta, and glycosyl phosphatidyl inositol (GPI)-anchored TFPIbeta. The microvascular endothelium is thought to be the principal source of TFPI and TFPIalpha is the predominant isoform expressed in humans. TFPIalpha, apparently attached to the surface...

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Tissue factor: molecular recognition and cofactor function.

One aspect of the inflammatory response is the activation of the coagulation protease cascade resulting from the expression of tissue factor (TF) on vascular cells. TF is the cell-surface receptor for the coagulation serine protease factor VIIa, providing cofactor function by "switching on" the catalytic site of the bound enzyme and by contributing to the assembly with macromolecular substrate....

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ژورنال

عنوان ژورنال: Scientifica

سال: 2012

ISSN: 2090-908X

DOI: 10.6064/2012/964862