22 results found
    1. Chromosomes and Gene Expression

    Harmful DNA:RNA hybrids are formed in cis and in a Rad51-independent manner

    Juan Lafuente-Barquero et al.
    RNA does not form DNA:RNA hybrids in trans that compromise genome integrity.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Genome-wide DNA hypomethylation and RNA:DNA hybrid accumulation in Aicardi–Goutières syndrome

    Yoong Wearn Lim et al.
    Global epigenetic perturbations and accumulation of RNA:DNA hybrids are two novel hallmarks of the lupus-like inflammatory disorder Aicardi-Goutières syndrome.
    1. Chromosomes and Gene Expression

    Major satellite repeat RNA stabilize heterochromatin retention of Suv39h enzymes by RNA-nucleosome association and RNA:DNA hybrid formation

    Oscar Velazquez Camacho et al.
    An RNA-mediated mechanism that stabilizes association of the Suv39h enzymes at mouse heterochromatin is defined.
    1. Structural Biology and Molecular Biophysics

    Structural insights into the nucleic acid remodeling mechanisms of the yeast THO-Sub2 complex

    Sandra K Schuller et al.
    The THO-Sub2 complex is an asymmetric homodimer that uses the spatial arrangement of two Sub2 helicases to prevent RNA:DNA hybrids.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of a bacterial RNA polymerase holoenzyme open promoter complex

    Brian Bae et al.
    The crystal structure of bacterial RNA polymerase bound to the transcription bubble reveals key features that support the formation of a double-strand/single-strand DNA junction at the upstream edge of the −10 element where bubble formation initiates.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanisms of nucleotide selection by telomerase

    Matthew A Schaich et al.
    The roles of key telomerase active site residues were elucidated to determine how telomerase selects the correct from the incorrect nucleotide to maintain telomere integrity.
    1. Biochemistry and Chemical Biology

    CRISPR-Cas12a exploits R-loop asymmetry to form double-strand breaks

    Joshua C Cofsky et al.
    The DNA flanks on either side of an R-loop differ in stability, and CRISPR-Cas12 enzymes form double-strand breaks by targeting the more unstable flank with their single DNase active site.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The universally-conserved transcription factor RfaH is recruited to a hairpin structure of the non-template DNA strand

    Philipp K Zuber et al.
    Transcription factors can read out both the sequence and the structure of the non-template DNA strand in the transcription bubble, expanding the repertoire of mechanisms to control transcription.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A nuclease- and bisulfite-based strategy captures strand-specific R-loops genome-wide

    Phillip Wulfridge, Kavitha Sarma
    BisMapR reveals strand-specific R-loops with high resolution at small-scale genomic features including bidirectionally transcribed promoters and enhancers.
    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.

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