Phosphatidylinositol glycan anchor biosynthesis class A MAIVEAASCG LQVVSTRVGG IPEVLPENLI ILCEPSVKSL CEGLEKAIFQ LKSGTLPAPE NIHNIVKTFY TWRNVAERTE KVYDRVSVEA VLPMDKRLDR LISHCGPVTG YIFALLAVFN FLFLIFLRWM TPDSIIDVAI DATGPRGAWT