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    1. Cell Biology
    2. Chromosomes and Gene Expression

    Post-meiotic DNA double-strand breaks occur in Tetrahymena, and require Topoisomerase II and Spo11

    Takahiko Akematsu et al.
    The first genetic compelling evidence for post-meiotic DNA double-strand breaks and its relation to chromatin remodeling in haploid pronuclei is shown.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Rev7 and 53BP1/Crb2 prevent RecQ helicase-dependent hyper-resection of DNA double-strand breaks

    Bryan A Leland et al.
    A single-cell assay reveals that the genetic rewiring that underlies PARP inhibitor resistance drives altered DNA double-strand break end resection pathway choice.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Meiosis: Stopping chromosomes from breaking bad

    Rima Sandhu, G Valentin Börner
    The scaffolding that holds chromosome pairs together plays a key role in limiting the levels of double-strand breaks.
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    1. Cell Biology
    2. Chromosomes and Gene Expression

    ATR/Mec1 prevents lethal meiotic recombination initiation on partially replicated chromosomes in budding yeast

    Hannah G Blitzblau, Andreas Hochwagen
    During meiosis, budding yeast use a checkpoint involving the protein Mec1 to prevent the formation of double-strand breaks in DNA that has not completed replication.
    1. Chromosomes and Gene Expression

    Engineered proteins detect spontaneous DNA breakage in human and bacterial cells

    Chandan Shee et al.
    Fluorescent derivatives of a bacteriophage protein that binds double-stranded ends can trap and label genome-destabilizing double-strand DNA breaks in bacterial and human cells, and illuminate the origins of spontaneous DNA breakage in both.
    1. Cancer Biology

    Loss of p53 suppresses replication-stress-induced DNA breakage in G1/S checkpoint deficient cells

    Bente Benedict et al.
    During tumorigenesis loss of p53 not only abrogates cell cycle arrest and apoptosis, but also suppresses the induction of replication-stress-induced DNA double-stranded breaks.
    1. Chromosomes and Gene Expression

    Genome-wide mapping of sister chromatid exchange events in single yeast cells using Strand-seq

    Clémence Claussin et al.
    Genome-wide analysis of sister chromatid exchange using single-cell sequencing reveals that most spontaneous sister chromatid exchange events are not due to the repair of double-strand DNA breaks in wild-type yeast cells.
    1. Chromosomes and Gene Expression

    SETD2 is required for DNA double-strand break repair and activation of the p53-mediated checkpoint

    Sílvia Carvalho et al.
    The involvement of SETD2 in an important DNA repair pathway could explain the high frequency of SETD2 mutations in several cancers and may provide an alternative mechanism to evade the p53-mediated checkpoint.
    1. Cell Biology

    SIRT6 is a DNA double-strand break sensor

    Lior Onn et al.
    Hundreds of proteins are involved in the DNA damage response but only three sensors for DSB were known but now SIRT6 is identified as a fourth DSB sensor.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Targeting of the Fun30 nucleosome remodeller by the Dpb11 scaffold facilitates cell cycle-regulated DNA end resection

    Susanne CS Bantele et al.
    Chromatin remodelling is a key bottleneck to DNA end resection, the first and committed step of homologous recombination.