RNAi: Prokaryotes Get in on the Act

@article{Oost2009RNAiPG,
  title={RNAi: Prokaryotes Get in on the Act},
  author={J. Oost and Stan J. J. Brouns},
  journal={Cell},
  year={2009},
  volume={139},
  pages={863-865}
}
The small CRISPR-derived RNAs of bacteria and archaea provide adaptive immunity by targeting the DNA of invading viruses and plasmids. Hale et al. (2009) now report on a new variant CRISPR/Cas complex in the archaeon Pyrococcus furiosus that uses guide RNAs to specifically target and cleave RNA not DNA. 
In defense of phage
In vivo activity of CRISPR‐mediated virus defence in a hyperthermophilic archaeon
CRISPR interference and its applications.
CRISPR decoys
Small RNAs in streptococci
Bacterial CRISPR Regions: General Features and their Potential for Epidemiological Molecular Typing Studies
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