Article
Destabilization of the A1 domain in von Willebrand factor dissociates the A1A2A3 tri-domain and provokes spontaneous binding to glycoprotein Ibalpha and platelet activation under shear stress.
The Journal of biological chemistry - 23 Jul 2010
Auton Matthew, Sowa Katie E, Smith Scott M, Sedlák Erik, Vijayan K Vinod, Cruz Miguel A
Abstract excerpt
This study used recombinant A1A2A3 tri-domain proteins to demonstrate that A domain association in von Willebrand factor (VWF) regulates the binding to platelet glycoprotein Ibalpha (GPIbalpha). We performed comparative studies between wild type (WT) A1 domain and the R1450E variant that dissociates the tri-domain complex by destabilizing the A1 domain. Using urea denaturation and differential scanning...
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