6 results found
    1. Biochemistry and Chemical Biology

    Control of the polyamine biosynthesis pathway by G2-quadruplexes

    Helen Louise Lightfoot et al.
    An ensemble of conserved G2-quadruplex structures in the untranslated regions of messenger RNAs from genes in the polyamine bioysynthesis pathway sense polyamine levels and regulate polyamine synthesis in cells.
    1. Cell Biology
    2. Neuroscience

    Small-molecule G-quadruplex stabilizers reveal a novel pathway of autophagy regulation in neurons

    Jose F Moruno-Manchon et al.
    G-quadruplex DNA regulates autophagy in neurons.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Transcription-associated topoisomerase 2α (TOP2A) activity is a major effector of cytotoxicity induced by G-quadruplex ligands

    Madeleine Bossaert et al.
    Topoisomerase 2α DNA breaks induced by G-quadruplex ligands are associated with a topological stress resulting from a transcription-dependent mechanism and counteracted by DNA topoisomerase 1 and factors promoting transcription elongation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Genetic interactions of G-quadruplexes in humans

    Katherine G Zyner et al.
    For the first time, the spectrum of genes and pathways interacting with alternative DNA structures called G-quadruplexes in humans is revealed highlighting new possibilities for the pursuit of cancer therapies.
    1. Biochemistry and Chemical Biology

    The C9ORF72 GGGGCC expansion forms RNA G-quadruplex inclusions and sequesters hnRNP H to disrupt splicing in ALS brains

    Erin G Conlon et al.
    The C9orf72 expansion binds and sequesters the splicing factor hnRNP H leading to insoluble G-quadruplex aggregates that functionally reduce hnRNP H, thereby producing splicing defects.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Non-Canonical G-quadruplexes cause the hCEB1 minisatellite instability in Saccharomyces cerevisiae

    Aurèle Piazza et al.
    A combination of genetics and biophysical approaches identifies an overlapping set of sequences that form non-canonical G-quadruplex structures in vitro and induce genomic instability in cells.

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