2,907 results found
    1. Chromosomes and Gene Expression

    Histone H3G34R mutation causes replication stress, homologous recombination defects and genomic instability in S. pombe

    Rajesh K Yadav et al.
    Mutation of Glycine 34 to Arginine within the N-terminal tail of histone H3 alters post-translational modifications on Lysine 36 and is associated with a delay in replication restart, defective homologous recombination and an increase in genomic instability.
    1. Chromosomes and Gene Expression

    DNA-RNA hybrids at DSBs interfere with repair by homologous recombination

    Pedro Ortega et al.
    Genetic and physical analyses reveal that DNA-RNA hybrids form fortuitously at DNA double-strand breaks during transcription and need removal to allow repair by homologous recombination.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A PALB2-interacting domain in RNF168 couples homologous recombination to DNA break-induced chromatin ubiquitylation

    Martijn S Luijsterburg et al.
    A new mechanism is uncovered by which the RNF168 ubiquitin ligase couples PALB2-dependent homologous recombination to H2A ubiquitylation to promote DNA repair and preserve genome integrity.
    1. Cell Biology
    2. Immunology and Inflammation

    Induction of homologous recombination between sequence repeats by the activation induced cytidine deaminase (AID) protein

    Jean-Marie Buerstedde et al.
    Intra- and intergenic deletions by repeat recombination broaden the mutagenic potential of the activation induced cytidine deaminase (AID) protein.
    1. Chromosomes and Gene Expression

    MicroRNAs down-regulate homologous recombination in the G1 phase of cycling cells to maintain genomic stability

    Young Eun Choi et al.
    MicroRNAs tightly control the cellular level of homologous recombination (HR) factors in the G1 phase, and failure of this control system results in an ectopic increase in HR proteins in G1 cells leading to impaired DNA repair.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    Recombinational branch migration by the RadA/Sms paralog of RecA in Escherichia coli

    Deani L Cooper, Susan T Lovett
    The role of the bacterial protein RadA in homologous recombination – a DNA repair pathway vital to all cells – is defined.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Srs2 promotes synthesis-dependent strand annealing by disrupting DNA polymerase δ-extending D-loops

    Jie Liu et al.
    The Srs2 helicase functions in Synthesis-Dependent Strand Annealing to avoid crossover formation during homologous recombination by disrupting D-loops that are extended by DNA polymerase delta in an ATP-dependent and direction-specific manner.
    1. Cell Biology
    2. Genetics and Genomics

    Selections that isolate recombinant mitochondrial genomes in animals

    Hansong Ma, Patrick H O'Farrell
    Recombinant mitochondrial genomes can be selected, traits can be genetically mapped and new genetic combinations can be made.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    LIN37-DREAM prevents DNA end resection and homologous recombination at DNA double-strand breaks in quiescent cells

    Bo-Ruei Chen et al.
    The LIN37-DREAM complex has a critical role in regulating DNA double-strand break end processing and suppressing aberrant homology-directed repair in quiescent cells.
    1. Chromosomes and Gene Expression

    The homologous recombination machinery modulates the formation of RNA–DNA hybrids and associated chromosome instability

    Lamia Wahba et al.
    When a protein involved in DNA repair malfunctions, it can anneal RNA molecules to DNA molecules, creating hybrids that increase the frequency of mutations in the DNA.

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