The HPA-15 (Gov) Platelet Alloantigen System: Allele Frequencies in the Canadian Population.

Abstract Human platelet antigens (HPAs) are genetically defined polymorphisms expressed on plasma membrane proteins. Alloimmunization following exposure to the incompatible antigen during pregnancy, or following transfusion or transplantation, can cause severe thrombocytopenia and bleeding. The Gov-a/Gov-b biallelic system is expressed on CD109, a 175kD glyco sylphosphatidylinositol-anchored glycoprotein found on platelets, …