8,324 results found
    1. Chromosomes and Gene Expression

    Recombination occurs within minutes of replication blockage by RTS1 producing restarted forks that are prone to collapse

    Michael O Nguyen et al.
    Homologous recombination is the default response to replication impedance by the RTS1 barrier, leading to restarted replication forks that suffer frequent collapse, triggering further rounds of recombination downstream of the barrier.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Rif1 inhibits replication fork progression and controls DNA copy number in Drosophila

    Alexander Munden et al.
    To regulate DNA copy number during development in Drosophila, the SUUR protein recruits Rif1 to replisomes where Rif1 inhibits replication fork progression, thus controlling copy number independently of origin firing.
    1. Cell Biology

    Two subunits of human ORC are dispensable for DNA replication and proliferation

    Etsuko Shibata et al.
    Human cell lines replicate and proliferate without ORC1 or ORC2, two subunits of the replication initiator protein complex ORC, which has till now been considered essential for DNA replication.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    TRF1 averts chromatin remodelling, recombination and replication dependent-break induced replication at mouse telomeres

    Rosa Maria Porreca et al.
    TRF1 suppresses replication fork stalling, which triggers break induced replication at telomeres associated with DNA damage response, alteration in the telomere chromatin environment, and re-localisation of telomeres to PML bodies.
    1. Chromosomes and Gene Expression

    The PCNA unloader Elg1 promotes recombination at collapsed replication forks in fission yeast

    Sanjeeta Tamang et al.
    Unloading the polymerase sliding clamp PCNA from DNA by Elg1 promotes recombination at the RTS1 replication fork barrier by limiting Fbh1 and Srs2 activity.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    53BP1 and BRCA1 control pathway choice for stalled replication restart

    Yixi Xu et al.
    53BP1 and BRCA1 antagonistically control a temporal choice of two distinct pathways to restart stalled replication forks in a DNA double stand repair-independent manner.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A conserved MCM single-stranded DNA binding element is essential for replication initiation

    Clifford A Froelich et al.
    The crystal structure of the MCM helicase bound to single-stranded DNA reveals a binding motif that is critical for cell viability, helicase activation and DNA replication.
    1. Chromosomes and Gene Expression

    Inter-Fork Strand Annealing causes genomic deletions during the termination of DNA replication

    Carl A Morrow et al.
    The discovery of a mechanism that causes DNA deletions during non-canonical DNA replication termination is described.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    DNA binding polarity, dimerization, and ATPase ring remodeling in the CMG helicase of the eukaryotic replisome

    Alessandro Costa et al.
    The Mcm2-7 motor unwinds DNA using an approach distinct from that of superfamily III helicases, and accesses multiple ring configurations and assembly states during the initiation of DNA replication.
    1. Chromosomes and Gene Expression

    p53 orchestrates DNA replication restart homeostasis by suppressing mutagenic RAD52 and POLθ pathways

    Sunetra Roy et al.
    p53 suppresses genome instability by direct role at stalled replication forks for pathway regulation that explains transcription-independent p53 tumor-suppressor functions.

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