Article
Shear-induced unfolding activates von Willebrand factor A2 domain for proteolysis.
Journal of thrombosis and haemostasis : JTH - 1 Dec 2009
Baldauf C, Schneppenheim R, Stacklies W, Obser T, Pieconka A, Schneppenheim S, Budde U, Zhou J, Gräter F
Abstract excerpt
BACKGROUND: To avoid pathological platelet aggregation by von Willebrand factor (VWF), VWF multimers are regulated in size and reactivity for adhesion by ADAMTS13-mediated proteolysis in a shear flow dependent manner. OBJECTIVE AND METHODS: We examined whether tensile stress in VWF under shear flow activates the VWF A2 domain for cleavage by ADAMTS13 using molecular dynamics simulations. We generated a full...
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