Immunogen sequence: CVSTPGHRTD LFQRDPKNVL ITDFFGSVRK VEITTETIKL QQDSEIMESS YKEDQMDEKL MEPLKYAEQL PVAQIIHQKP KLKD. This gene encodes a member of the cysteine protease family C13 that is involved in glycosylphosphatidylinositol (GPI)-anchor biosynthesis. T