Nature Communications (Apr 2019)

A new type of DNA phosphorothioation-based antiviral system in archaea

  • Lei Xiong,
  • Siyi Liu,
  • Si Chen,
  • Yao Xiao,
  • Bochen Zhu,
  • Yali Gao,
  • Yujing Zhang,
  • Beibei Chen,
  • Jie Luo,
  • Zixin Deng,
  • Xiangdong Chen,
  • Lianrong Wang,
  • Shi Chen

DOI
https://doi.org/10.1038/s41467-019-09390-9
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 11

Abstract

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The prokaryote defence system Dnd relies on phosphorothioation (PT) of DNA backbone to distinguish between self and non-self DNA. Here, Xiong et al. describe a previously uncharacterized PT-based antiviral system that is independent of the canonical Dnd and is widespread in Archaea and Bacteria.