Professor Paul Denny p.w.denny@durham.ac.uk
Professor
GPI-anchored proteins and glycoconjugates segregate into lipid rafts in Kinetoplastida
Denny, PW; Field, MC; Smith, DF
Authors
MC Field
DF Smith
Abstract
The plasma membranes of the divergent eukaryotic parasites, Leishmania and Trypanosoma, are highly specialised, with a thick coat of glycoconjugates and glycoproteins playing a central role in virulence. Unusually, the majority of these surface macro-molecules are attached to the plasma membrane via a glycosylphosphatidylinositol (GPI) anchor. In mammalian cells and yeast, many GPI-anchored molecules associate with sphingolipid and cholesterol-rich detergent-resistant membranes, known as lipid rafts. Here we show that GPI-anchored parasite macro-molecules (but not the dual acylated Leishmania surface protein (hydrophilic acylated surface protein) or a subset of the GPI-anchored glycoinositol phospholipid glycolipids) are enriched in a sphingolipid/sterol-rich fraction resistant to cold detergent extraction. This observation is consistent with the presence of functional lipid rafts in these ancient, highly polarised organisms.
Citation
Denny, P., Field, M., & Smith, D. (2001). GPI-anchored proteins and glycoconjugates segregate into lipid rafts in Kinetoplastida. FEBS Letters, 491(1-2), 148-153. https://doi.org/10.1016/s0014-5793%2801%2902172-x
Journal Article Type | Article |
---|---|
Publication Date | Feb 1, 2001 |
Deposit Date | Feb 18, 2009 |
Publicly Available Date | Feb 18, 2009 |
Journal | FEBS Letters |
Print ISSN | 0014-5793 |
Publisher | Federation of European Biochemical Societies |
Peer Reviewed | Peer Reviewed |
Volume | 491 |
Issue | 1-2 |
Pages | 148-153 |
DOI | https://doi.org/10.1016/s0014-5793%2801%2902172-x |
Keywords | Lipid raft, Kinetoplastida, Glycosylphosphatidylinositol anchor, Sphingolipid, Sterol. |
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