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Glycobiology
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Glycobiology
Article . 2002 . Peer-reviewed
Data sources: Crossref
Glycobiology
Article . 2003
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The glycoforms of a Trypanosoma brucei variant surface glycoprotein and molecular modeling of a glycosylated surface coat

Authors: Mehlert, Angela; Bond, Charles S.; Ferguson, Michael A. J.;

The glycoforms of a Trypanosoma brucei variant surface glycoprotein and molecular modeling of a glycosylated surface coat

Abstract

The plasma membrane of the African sleeping sickness parasite Trypanosoma brucei is covered with a dense, protective surface coat. This surface coat is a monolayer of five million variant surface glycoprotein (VSG) dimers that form a macromolecular diffusion barrier. The surface coat protects the parasite from the innate immune system and, through antigenic variation, the specific host immune response. There are several hundred VSG genes per parasite, and they encode glycoproteins that vary in primary amino acid sequence, the number of N-glycosylation sites, and the types of N-linked oligosaccharides and glycosylphosphatidylinositol membrane anchors they contain. In this study, we show that VSG MITat.1.5 is glycosylated at all three potential N-glycosylation sites, and we assign the oligosaccharides present at each site. Using the most abundant oligosaccharides at each site, we construct a molecular model of the glycoprotein to assess the role of N-linked oligosaccharides in the architecture of the surface coat.

Country
United Kingdom
Related Organizations
Keywords

Models, Molecular, Glycosylation, Molecular Sequence Data, Trypanosoma brucei brucei, 610, 500, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Animals, Protein Isoforms, Amino Acid Sequence, Variant Surface Glycoproteins, Trypanosoma

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
54
Top 10%
Top 10%
Top 10%
bronze