DNA repair by the MRN complex: Break it to make it

摘要

Genomic instability in ataxia telangiectasia-like disorder and Nijmegen breakage syndrome is due to disruption of the Mre11-Rad50-Nbs1 complex. Buis et al. (2008) and Williams et al. (2008) now reveal the importance of the nuclease activity of Mre11 for mammalian genome maintenance and present a molecular view of its active site.