Glycosylphosphatidylinositol (GPI) is a conserved post-translational modification to anchor cell surface proteins to plasma membrane in eukaryotes. GWT1 is involved in GPI anchor biosynthesis; it is required for inositol acylation in yeast [1-2].

1: GWT1 Gene Is Required for Inositol Acylation of Glycosylphosphatidylinositol Anchors in Yeast. Umemura M, Okamoto M, Nakayama KI, Sagane K, Tsukahara K, Hata K, Jigami Y; J Biol Chem 2003;278:23639-23647. PMID:12714589

2: Medicinal genetics approach towards identifying the molecular target of a novel inhibitor of fungal cell wall assembly. Tsukahara K, Hata K, Nakamoto K, Sagane K, Watanabe NA, Kuromitsu J, Kai J, Tsuchiya M, Ohba F, Jigami Y, Yoshimatsu K, Nagasu T; Mol Microbiol 2003;48:1029-1042. PMID:12753194