The presence of DNA lesions is a clear signal that initiates the DNA damage response; however, the mechanisms that attenuate this response when repair has occurred are less clear. Here, deacetylation of Sae2 by Rpd3 and Hda1 is shown to be required for it to act on Mre11. When the role of Sae2 in resection is completed, it is acetylated by Gcn5 and degraded through an autophagic pathway. This work highlights links between DNA damage signalling, acetylation of repair factors, and autophagy mediated degradation of these factors.
- Thomas Robert
- Fabio Vanoli
- Marco Foiani