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    1. Cell Biology
    2. Chromosomes and Gene Expression

    Methylation of histone H3K23 blocks DNA damage in pericentric heterochromatin during meiosis

    Romeo Papazyan et al.
    A previously unappreciated histone methylation pathway helps limit DNA double-strand break formation and recombination in heterochromatin during meiosis.
    1. Chromosomes and Gene Expression

    PARP1-dependent recruitment of the FBXL10-RNF68-RNF2 ubiquitin ligase to sites of DNA damage controls H2A.Z loading

    Gergely Rona et al.
    Upon genotoxic stress, the FBXL10-RNF68-RNF2 ubiquitin ligase complex mono-ubiquitylates histone H2A and mediates H2A/H2A.Z exchange to repress transcription and ensures proper high fidelity homologous recombination repair.
    1. Structural Biology and Molecular Biophysics

    The RNF168 paralog RNF169 defines a new class of ubiquitylated histone reader involved in the response to DNA damage

    Julianne Kitevski-LeBlanc et al.
    A structural model of the dynamic complex comprising the histone reader RNF169 bound to an ubiquitylated nucleosome core particle reveals a three-pronged binding mechanism, which provides specificity for the recognition of DNA double-strand break sites.
    1. Chromosomes and Gene Expression

    The CDK-PLK1 axis targets the DNA damage checkpoint sensor protein RAD9 to promote cell proliferation and tolerance to genotoxic stress

    Takeshi Wakida et al.
    Minimizing anti-proliferation signaling from DNA damage detection machinery is the tactic for the cells to drive proliferation under genotoxic environment, and the function is exerted by Polo-Like-Kinase1 that is frequently over-expressed in cancer cells.
    1. Chromosomes and Gene Expression

    RNase H enables efficient repair of R-loop induced DNA damage

    Jeremy D Amon, Douglas Koshland
    In addition to causing DNA damage, R-loops cause genomic instability by interfering with DNA repair.
    1. Biochemistry and Chemical Biology

    Poly(ADP-ribose) polymerase 1 searches DNA via a ‘monkey bar’ mechanism

    Johannes Rudolph et al.
    By moving between DNA segments like a child swinging on monkey bars, poly(ADP-ribose) polymerase 1 explores possible DNA damage sites more effectively.
    1. Cancer Biology

    Prosurvival long noncoding RNA PINCR regulates a subset of p53 targets in human colorectal cancer cells by binding to Matrin 3

    Ritu Chaudhary et al.
    Functional and mechanistic analysis of p53-regulated lncRNA PINCR and its interacting RNA-binding protein Matrin 3 uncovers context-dependent regulation of specific p53 target genes during DNA damage.