Immunogen sequence: KVDDGVKEIV SMFNHFYGND GKTTFIFTSD HGMTDWGSHG AGHPSETLTP LVTWGAGIKY PQRVSAQQFD DAFLKEWRLE NWK Highest antigen sequence identity to the following orthologs: Mouse - 89%, Rat - 87%. PIGN is involved in glycosylphosphatidylinositol (GPI)-a