Abstract

DNA Repair Double-strand breaks in DNA are extremely dangerous to the integrity of our genomes. Most arise from problems encountered by replication forks during duplication of genomic DNA. Break-induced replication is known to use an error-prone DNA polymerase to repair such damage. Mayle et al. show that cells limit error-prone DNA synthesis by preventing the DNA polymerase from inadvertently switching to a related sequence with an incorrect template. The repair of the break is achieved by using a structure-specific nuclease to prevent formation of a long single-stranded region. Science , this issue p. [742][1] [1]: /lookup/doi/10.1126/science.aaa8391

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