Functional Roles of the von Willebrand Factor Propeptide
Orla Rawley, David Lillicrap · Zeitschrift für Orthopädie und Unfallchirurgie · 2021 · Heft 01 · S. 063-068
Bibliografische Angaben
Zusammenfassung
AbstractThe primary polypeptide sequence of von Willebrand factor (VWF) includes an N-terminal 741-amino acid VWF propeptide (VWFpp). In cells expressing VWF, the VWFpp performs two critical functions. In the Golgi, VWFpp mediates the intermolecular disulfide linkages that generate high-molecular-weight VWF multimers. Subsequently, the VWFpp, which is proteolytically cleaved from mature VWF by furin, functions to generate the endothelial storage organelles (Weibel-Palade bodies) in which VWF and a distinct collection of proteins are stored, and from where they undergo regulated secretion from the endothelium. Th…