(74) PIGN deficiency is now termed MCAHS syndrome type 1 (for multiple congenital anomalies with hypotonia and seizures) or MCAHS1.
(76,77) Inherited PIGA deficiency is now termed MCAHS type 2 (MCAHS2).
Abbreviations: C: carboxyl; CHO: Chinese hamster ovary; Dol-P-Man: dolichol-phosphate mannose; EBV: Epstein-Barr virus; ER: endoplasmic reticulum; EtNP: ethanolamine phosphate; GalNAc: N-acetylgalactosamine; GlcN: glucosamine; GlcNAc: N-acetylglucosamine; GPI: glycosylphosphatidylinositol; GPI-AP: GPI-anchored protein; GPI-GnT: GPI-GlcNAc transferase; HPMRS: hyperphosphatasia with mental retardation syndrome; IGD: inherited GPI deficiency; Man: mannose; MCAHS: multiple congenital anomalies with hypotonia and seizures; N: amino; PI: phosphatidylinositol; PI-PLC: PI-specific phospholipase C; PNH: paroxysmal nocturnal hemoglobinuria.