Nature Communications (Nov 2020)

Discovery of multiple anti-CRISPRs highlights anti-defense gene clustering in mobile genetic elements

  • Rafael Pinilla-Redondo,
  • Saadlee Shehreen,
  • Nicole D. Marino,
  • Robert D. Fagerlund,
  • Chris M. Brown,
  • Søren J. Sørensen,
  • Peter C. Fineran,
  • Joseph Bondy-Denomy

DOI
https://doi.org/10.1038/s41467-020-19415-3
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 11

Abstract

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Mobile genetic elements have evolved anti-CRISPR (Acr) proteins to bypass the immunity provided by prokaryotic CRISPR–Cas systems. Here, the authors identify 11 type I Acrs encoded on mobile genetic elements, and show that acr loci neighborhoods can be used to discover inhibitors of other bacterial defense systems.