GP1BB Proteins and Enzymes

Platelet glycoprotein Ib (GPIb) is a heterodimeric transmembrane protein consisting of a disulfide-linked 140 kD alphachain and 22 kD beta chain. It is part of the GPIb-V-IX system that constitutes the receptor for von Willebrand factor(VWF), and mediates platelet adhesion in the arterial circulation. GPIb alpha chain provides the VWF binding site,...