Article
Contribution of A1 subunit residue Q316 in thrombin-activated factor VIII to A2 subunit dissociation.
Biochemistry - 28 Aug 2007
Parker Ernest T, Lollar Pete
Abstract excerpt
Blood coagulation factor VIII (fVIII) is activated by thrombin to form an A1/A2/A3-C1-C2 heterotrimer, which functions as a cofactor for factor IXa during intrinsic pathway factor X activation. Human thrombin-activated fVIII (fVIIIa) decays rapidly because of first-order dissociation of the A2 subunit, which may function to regulate the coagulation mechanism. The three fVIII A domains each consist of two...
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