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Archaeal physiology: Two modes of a DNA scissor

Structural and functional studies of the archaeum Methanocaldococcus jannaschii Argonaute (MjAgo) reveal a DNA-guided DNA nuclease that is also active without a guide. This unguided activity is suggested to prime MjAgo for its subsequent sequence-specific DNA-silencing role in host defence.

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Figure 1: Structure of the binary MjAgo–guide-DNA complex.

References

  1. Lin, H. & Spradling, A. C. Development 124, 2463–2476 (1997).

    CAS  Google Scholar 

  2. Bohmert, K. et al. EMBO J. 17, 170–180 (1998).

    Article  CAS  Google Scholar 

  3. Song, J. J., Smith, S. K., Hannon, G. J. & Joshua-Tor, L. Science 305, 1434–1437 (2004).

    Article  CAS  Google Scholar 

  4. Yuan, Y. R. et al. Molecular Cell 19, 405–419 (2005).

    Article  CAS  Google Scholar 

  5. Gao, F., Shen, X. Z., Jiang, F., Wu, Y. & Han, C. Nat. Biotechnol. 34, 768–773 (2016).

    Article  CAS  Google Scholar 

  6. Swarts, D. C. et al. Nucleic Acids Res. 43, 5120–5129 (2015).

    Article  CAS  Google Scholar 

  7. Sheng, G. et al. Proc. Natl Acad. Sci. USA 111, 652–657 (2014).

    Article  CAS  Google Scholar 

  8. Swarts, D. C. et al. Nature 507, 258–261 (2014).

    Article  CAS  Google Scholar 

  9. Miyoshi, T., Ito, K., Murakami, R. & Uchiumi, T. Nat. Commun. 7, 11846 (2016).

    Article  CAS  Google Scholar 

  10. Olovnikov, I., Chan, K., Sachidanandam, R., Newman, D. K. & Aravin, A. A. Mol. Cell 51, 594–605 (2013).

    Article  CAS  Google Scholar 

  11. Willkomm, S. et al. Nat. Microbiol. 2, 17035 (2017).

    Article  CAS  Google Scholar 

  12. Zander, A. et al. Nat. Microbiol. 2, 17034 (2017).

    Article  CAS  Google Scholar 

  13. Lillestol, R. K., Redder, P., Garrett, R. A. & Brugger, K. Archaea 2, 59–72 (2006).

    Article  Google Scholar 

  14. Schirle, N. T., Sheu-Gruttadauria, J. & MacRae, I. J. Science 346, 608–613 (2014).

    Article  CAS  Google Scholar 

  15. Makarova, K. S., Grishin, N. V., Shabalina, S. A., Wolf, Y. I. & Koonin, E. V. Biol. Direct 1, 7 (2006).

    Article  Google Scholar 

Download references

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Correspondence to Lennart Randau.

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Randau, L. Archaeal physiology: Two modes of a DNA scissor. Nat Microbiol 2, 17049 (2017). https://doi.org/10.1038/nmicrobiol.2017.49

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