474 results found
    1. Genetics and Genomics

    Mismatch repair deficiency endows tumors with a unique mutation signature and sensitivity to DNA double-strand breaks

    Hui Zhao et al.
    A comprehensive catalogue of somatic mutations accumulating in MMR-deficient tumors highlights their relevance in the context of human genetic evolution, for the diagnosis of microsatellite instability and the provision of targeted treatment options.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Explosive mutation accumulation triggered by heterozygous human Pol ε proofreading-deficiency is driven by suppression of mismatch repair

    Karl P Hodel et al.
    When mismatch repair is compromised heterozygous loss of Pol ε proofreading is sufficient to drive a subset of the observed clinical characteristics of Pol ε tumors.
    1. Chromosomes and Gene Expression

    High-resolution mapping of heteroduplex DNA formed during UV-induced and spontaneous mitotic recombination events in yeast

    Yi Yin et al.
    Genome-wide mapping of heteroduplex DNA (a recombination intermediate) formed during mitotic recombination in yeast demonstrates that the "classical" model of double-strand DNA break repair is inadequate to explain several aspects of mitotic recombination.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    MutSα maintains the mismatch repair capability by inhibiting PCNA unloading

    Yoshitaka Kawasoe et al.
    Biochemical analysis in Xenopus egg extracts reveals that the MutSα mismatch sensor retains the DNA-bound replication clamp to maintain a post-replicative temporal window permissive to strand-specific repair of mismatches.
    1. Cancer Biology
    2. Cell Biology

    Human pancreatic cancer cell exosomes, but not human normal cell exosomes, act as an initiator in cell transformation

    Karoliina Stefanius et al.
    Exosomes secreted from pancreatic cancer cells can function as a classic initiator in the multi-step cellular transformation process.
    1. Cancer Biology

    Werner syndrome helicase is a selective vulnerability of microsatellite instability-high tumor cells

    Simone Lieb et al.
    Targeting Werner syndrome helicase might constitute a novel opportunity for the treatment of a clinically defined subset of patients harboring MSI-H/MMR-deficient tumors.
    1. Cell Biology
    2. Genetics and Genomics

    Manipulation of the human tRNA pool reveals distinct tRNA sets that act in cellular proliferation or cell cycle arrest

    Noa Aharon-Hefetz et al.
    Systematic CRISPR-based editing of tRNA genes revealed that different human cells that span a range of growth rates and different modes of proliferation states require diverse tRNA sets.
    1. Neuroscience

    Mother brain is wired for social moments

    Ortal Shimon-Raz et al.
    Mother brain shows special sensitivity to social moments of mother-infant synchrony, compared to other caregiving experiences, through enhanced activation across the caregiving network, response to oxytocin administration, and temporal consistency.
    1. Genetics and Genomics
    2. Neuroscience

    A simple and effective F0 knockout method for rapid screening of behaviour and other complex phenotypes

    François Kroll et al.
    Zebrafish knockouts can be generated in a few hours directly from wild-type eggs and are suitable for studying continuous traits, including behaviour.
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    O-GlcNAc on NOTCH1 EGF repeats regulates ligand-induced Notch signaling and vascular development in mammals

    Shogo Sawaguchi et al.
    The transfer of O-GlcNAc by EOGT to specific EGF repeats of NOTCH1 promotes DLL4 binding, Notch signaling, and retinal vascular development.

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