lib antibody, GPV antibody, PLGPV antibody, CD42d antibody, glycoprotein V platelet L homeolog antibody, glycoprotein V platelet antibody, glycoprotein 5 (platelet) antibody, glycoprotein V (platelet) antibody, gp5.L antibody, GP5 antibody, Gp5 antibody
Background
CD42d is an 83 kD surface glycoprotein that non-covalently associates with GPIb and GPIX to form a receptor complex for von Willebrand factor on megakaryocytes and resting platelets. Binding sites for von Willebrand factor and thrombin have been localized to the GPIba chain of the GPI-b-V-IX complex. Platelet activation with thrombin cleaves the GPI-b-V-IX complex to release a 69 kD soluble fragment. Presence of the GPI-b-V-IX complex is important in Bernard-Soulier syndrome, a rare bleeding disorder.