disease:Defects in GP9 are a cause of Bernard-Soulier syndrome (BSS) [MIM:231200]; also known as giant platelet disease (GPD). BSS patients have unusually large platelets and have a clinical bleeding tendency.,function:The GPIb-V-IX complex functions as the vWF receptor and mediates vWF-dependent platelet adhesion to blood vessels. The adhesion of platelets to injured vascular surfaces in the arterial circulation is a critical initiating event in hemostasis. GP-IX may provide for membrane insertion and orientation of GP-Ib.,miscellaneous:Platelet activation apparently involves disruption of the macromolecular complex of GP-Ib with the platelet glycoprotein IX (GP-IX) and dissociation of GP-Ib from the actin-binding protein.,similarity:Contains 1 LRR (leucine-rich) repeat.,subunit:GP-Ib alpha and beta are disulfide linked. GP-IX is complexed with the GP-Ib heterodimer via a non covalent linkage.,
Membrane; Single-pass type I membrane protein.
Liver,Platelet,