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Total Synthesis of a Glycosylphosphatidylinositol Anchor of the Human Lymphocyte CD52 Antigen
Author(s) -
Burgula Srinivas,
Swarts Benjamin M.,
Guo Zhongwu
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201102545
Subject(s) - chemistry , antigen , glycolipid , biochemistry , lymphocyte , microbiology and biotechnology , biology , immunology
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.