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Keyword - SOS response (KW-0742)

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Protein involved in an SOS response, which implies the coordinated activation of diverse unlinked genes (ca. 20 in E.coli) involved in DNA repair, error-prone DNA replication, etc., in response to severe DNA damage. The SOS system is tightly regulated and its expression only occurs when absolutely required.


  • SOS repair system
  • SOS response system
  • SOS system


Biological process

Gene Ontology


SOS response [ GO:0009432 ]


DNA damageSOS responseBiological process
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