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fibrinopeptide

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fibrinopeptide /fi·bri·no·pep·tide/ (fi-brin″o-pep´tīd) either of two peptides (A and B) split off from fibrinogen during coagulation by the action of thrombin.
fi·bri·no·pep·tide (fbr-n-pptd)
n.
Either of two peptides released from fibrinogen by thrombin.

fibrinopeptide
[fī′brinōpep′tīd]
Etymology: L, fibra + Gk, peptein, to digest
a product of the action of thrombin on fibrinogen. The enzymatic cleavage responsible for the release of this protein fragment produces fibrin as well as the fibrinopeptides A and B. The latter consist of short peptides derived from the N-terminal ends of the alpha and beta chains of the fibrinogen molecule. See also fibrinogen, thrombin.

fibrinopeptide [fi″brĭ-no-pep´tīd]
either of two peptides (A and B) split off from fibrinogen during blood clotting by the action of thrombin.

fibrinopeptide
either of two peptides (A and B) split off from fibrinogen during blood clotting by the action of thrombin.


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Studies evaluating measures of hemostasis activation, such as the plasma level of fibrinopeptide A, which is cleaved from fibrinogen by thrombin, suggest that even asymptomatic nephrotic patients have evidence of ongoing coagulation.
The enzyme is thrombin-like in nature and hydrolyzes fibrinopeptide A from the intact fibrinogen molecule, unlike thrombin, which hydrolyzes fibrinopetide A and B from fibrinogen.
This defect is caused by impaired thrombin-mediated release of fibrinopeptide A and/or fibrinopeptide B from fibrinogen, as well as impaired fibrin monomer polymerization.
 
 
 
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