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Bioorganic & Medicinal Chemistry
Article
License: CC BY NC ND
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Bioorganic & Medicinal Chemistry
Article . 2016 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Synthesis of E. faecium wall teichoic acid fragments

Authors: Es, D. van der; Groenia, N.A.; Laverde, D.; Overkleeft, H.S.; Huebner, J.; Marel, G.A. van der; Codee, J.D.C.;

Synthesis of E. faecium wall teichoic acid fragments

Abstract

The first synthesis of different Enterococcus faecium wall teichoic acid (WTA) fragments is presented. The structure of these major cell wall components was elucidated recently and it was shown that these glycerolphosphate (GroP) based polymers are built up from -6-(GalNAc-α(1-3)-GalNAc-β(1-2)-GroP)- repeating units. We assembled WTA fragments up to three repeating units in length, in two series that differ in the stereochemistry of the glycerolphosphate moiety. The key GalNAc-GalNAc-GroP synthons, required for the synthesis, were generated from galactosazide building blocks that were employed in highly stereoselective glycosylation reactions to furnish both the α- and β-configured linkages. By comparing the NMR spectra of the synthesized fragments with the isolated material it appears that the hereto undefined stereochemistry of the glycerol phosphate moiety is sn-glycerol-3-phosphate. The generated fragments will be valuable tools to study their immunological activity at the molecular level.

Country
Netherlands
Keywords

Teichoic Acids, Carbohydrate Sequence, Cell Wall, Enterococcus faecium, Stereoisomerism

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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!
17
Top 10%
Average
Top 10%
Green
hybrid