title: Total synthesis of a glycosylphosphatidylinositol anchor of the human lymphocyte CD52 antigen.
abstract: The first total synthesis of a glycosylphosphatidylinositol (GPI) anchor bearing a polyunsaturated arachidonoyl fatty acid is reported. This lipid is found in mammalian GPIs that do not undergo lipid remodeling, a process that has important implications in the localization and function of GPI-anchored proteins. Incorporation of the oxidation- and reduction-sensitive arachidonoyl lipid in the target GPI was accomplished by using the para-methoxybenzyl (PMB) group for permanent hydroxyl group protection, which featured a selective, rapid, and efficient global deprotection protocol. The flexibility of this synthetic strategy was further highlighted by the inclusion of two additional GPI core structural modifications present in the GPI anchor of the human lymphocyte CD52 antigen.
authors.affiliation: Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA.
authors.forename: Srinivas
authors.initials: S
authors.lastname: Burgula
authors.forename: Benjamin M
authors.initials: BM
authors.lastname: Swarts
authors.forename: Zhongwu
authors.initials: Z
authors.lastname: Guo
mesh_terms: D015703:Antigens, CD / Q000737:chemistry* / Q000378:metabolism; D000951:Antigens, Neoplasm / Q000737:chemistry* / Q000378:metabolism; D000074301:CD52 Antigen; D002240:Carbohydrate Sequence; D006023:Glycoproteins / Q000737:chemistry* / Q000378:metabolism; D017261:Glycosylphosphatidylinositols / Q000138:chemical synthesis* / Q000737:chemistry / Q000378:metabolism; D006801:Humans; D008969:Molecular Sequence Data; D015394:Molecular Structure
chemical_list: D015703:Antigens, CD; D000951:Antigens, Neoplasm; D000074301:CD52 Antigen; C000613862:CD52 protein, human; D006023:Glycoproteins; D017261:Glycosylphosphatidylinositols