GlcNAc PI synthesis protein, GlcNAc-PI synthesis protein, GPI3, Phosphatidylinositol glycan anchor biosynthesis class A, phosphatidylinositol glycan anchor biosynthesis, class A paroxysmal nocturnal hemoglobinuria, Phosphatidylinositol N-acetylglucosamin
PIGA belongs to the glycosyltransferase 1 family and is necessary for the synthesis of N-acetylglucosaminyl-phosphatidylinositol, the very early intermediate in GPI-anchor biosynthesis. Defects in PIGA are the cause of paroxysmal nocturnal hemoglobinuria