The structure of the flock house virus B2 protein, a viral suppressor of RNA interference, shows a novel mode of double-stranded RNA recognition

Andreas Lingel, Bernd Simon, Elisa Izaurralde, Michael Sattler

Research output: Contribution to journalArticlepeer-review

113 Scopus citations

Abstract

We report the structure of the flock house virus B2 protein, a potent suppressor of RNA interference (RNAi) in animals and plants. The B2 protein is a homodimer in solution and contains three α-helices per monomer. Chemical shift perturbation shows that an antiparallel arrangement of helices (α2/α2′) forms an elongated binding interface with double-stranded RNA (dsRNA). This implies a novel mode of dsRNA recognition and provides insights into the mechanism of RNAi suppression by B2.

Original languageEnglish
Pages (from-to)1149-1155
Number of pages7
JournalEMBO Reports
Volume6
Issue number12
DOIs
StatePublished - Dec 2005
Externally publishedYes

Keywords

  • RNAi
  • Viral suppressor
  • dsRNA recognition

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