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SOS Response

  1. Martine Defais1,
  2. Raymond Devoret2

Published Online: 23 SEP 2005

DOI: 10.1038/npg.els.0003874



How to Cite

Defais, M. and Devoret, R. 2005. SOS Response. eLS. .

Author Information

  1. 1

    Pharmacology and Structural Biology Institute, CNRS, Toulouse, France

  2. 2

    Curie Institute, Paris, France

Publication History

  1. Published Online: 23 SEP 2005


Bacteria have developed an SOS response to mend DNA damage caused by deleterious agents such as radiations and chemicals. Mutagenesis, one of the SOS functions, has permitted bacteria to adapt to short- and long-term adverse living conditions.


  • SOS signal;
  • RecA nucleoprotein filament;
  • SOS induction;
  • LexA repressor;
  • SOS mutagenesis