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  • Edgar, Rebecca J. (author)

Discovery of glycerol phosphate modification on streptococcal rhamnose polysaccharides

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019-04-01
  • Springer Science and Business Media LLC,2019
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-169092
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-169092URI
  • https://doi.org/10.1038/s41589-019-0251-4DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Cell wall glycopolymers on the surface of Gram-positive bacteria are fundamental to bacterial physiology and infection biology. Here we identify gacH, a gene in the Streptococcus pyogenes group A carbohydrate (GAC) biosynthetic cluster, in two independent transposon library screens for its ability to confer resistance to zinc and susceptibility to the bactericidal enzyme human group IIA-secreted phospholipase A(2). Subsequent structural and phylogenetic analysis of the GacH extracellular domain revealed that GacH represents an alternative class of glycerol phosphate transferase. We detected the presence of glycerol phosphate in the GAC, as well as the serotype c carbohydrate from Streptococcus mutans, which depended on the presence of the respective gacH homologs. Finally, nuclear magnetic resonance analysis of GAC confirmed that glycerol phosphate is attached to approximately 25% of the GAC N-acetylglucosamine side-chains at the C6 hydroxyl group. This previously unrecognized structural modification impacts host-pathogen interaction and has implications for vaccine design.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • van Hensbergen, Vincent P. (author)
  • Ruda, AlessandroStockholms universitet,Institutionen för organisk kemi(Swepub:su)alru3031 (author)
  • Turner, Andrew G. (author)
  • Deng, Pan (author)
  • Le Breton, Yoann (author)
  • El-Sayed, Najib M. (author)
  • Belew, Ashton T. (author)
  • McIver, Kevin S. (author)
  • McEwan, Alastair G. (author)
  • Morris, Andrew J. (author)
  • Lambeau, Gérard (author)
  • Walker, Markj (author)
  • Rush, Jeffrey S. (author)
  • Korotkov, Konstantin (author)
  • Widmalm, GöranStockholms universitet,Institutionen för organisk kemi(Swepub:su)gw (author)
  • van Sorge, Nina M. (author)
  • Korotkova, Natalia (author)
  • Stockholms universitetInstitutionen för organisk kemi (creator_code:org_t)

Related titles

  • In:Nature Chemical Biology: Springer Science and Business Media LLC15:5, s. 463-+1552-44501552-4469

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