O-acetylation of sialic acid on Group B Streptococcus inhibits neutrophil suppression and virulence

  • Shannon Weiman
  • , Satoshi Uchiyama
  • , Feng Ying C. Lin
  • , Donald Chaffin
  • , Ajit Varki
  • , Victor Nizet
  • , Amanda L. Lewis

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

GBS (Group B Streptococcus) requires capsular Sia (sialic acid) for virulence and partially modifies this sugar by O-acetylation. In the present paper we describe serotype-specific patterns of GBS Sia O-acetylation that can be manipulated by genetic and biochemical means. In vitro and in vivo assays demonstrate that this subtle modification attenuates GBS Sia-mediated neutrophil suppression and animal virulence.

Original languageEnglish
Pages (from-to)163-168
Number of pages6
JournalBiochemical Journal
Volume428
Issue number2
DOIs
StatePublished - Jun 1 2010

Keywords

  • Capsular polysaccharide
  • Neutrophil
  • O-acetylation
  • Sialic acid
  • Streptococcus agalactiae

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