9,186 results found
    1. Chromosomes and Gene Expression

    Resection is responsible for loss of transcription around a double-strand break in Saccharomyces cerevisiae

    Nicola Manfrini et al.
    The conversion of the ends of a double-strand break from double-stranded to single-stranded DNA, which is necessary to initiate homologous recombination, is responsible for loss of transcription and RNA polymerase occupancy around the double-strand break in Saccharomyces cerevisiae.
    1. Cancer Biology

    FAK activity sustains intrinsic and acquired ovarian cancer resistance to platinum chemotherapy

    Carlos J Diaz Osterman et al.
    Genomic gains in ovarian cancer can promote cisplatin resistance via a FAK, Wnt/beta-catenin and Myc signaling pathway supporting pluripotency genes and tumorspheres that can acquire FAK dependence for survival.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Repair of naturally occurring mismatches can induce mutations in flanking DNA

    Jia Chen et al.
    The repair of spontaneous DNA damage can introduce mutators that lead to further genetic changes, which could underlie evolutionary change, disease and aging.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Human Holliday junction resolvase GEN1 uses a chromodomain for efficient DNA recognition and cleavage

    Shun-Hsiao Lee et al.
    The crystal structure of human Holliday junction resolvase GEN1 in complex with DNA reveals a conserved chromodomain as an additional DNA-anchoring point that opens new perspectives for enzyme regulation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Small-molecule inhibitors identify the RAD52-ssDNA interaction as critical for recovery from replication stress and for survival of BRCA2 deficient cells

    Sarah R Hengel et al.
    Small molecule inhibitors identified in a biophysical high-throughout screening assay confirm the importance of the interaction between single-stranded DNA and the protein RAD52 for the survival of BRCA2-depleted cells.
    1. Chromosomes and Gene Expression

    SETD2 is required for DNA double-strand break repair and activation of the p53-mediated checkpoint

    Sílvia Carvalho et al.
    The involvement of SETD2 in an important DNA repair pathway could explain the high frequency of SETD2 mutations in several cancers and may provide an alternative mechanism to evade the p53-mediated checkpoint.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Methylation of RNA polymerase II non-consensus Lysine residues marks early transcription in mammalian cells

    João D Dias et al.
    Lysine mono- and di-methylation are two novel post-translational modifications of RNA polymerase II, which are enriched at promoters of active genes, precede lysine acetylation and mark early stages of transcription.
    1. Biochemistry and Chemical Biology

    Curcumin promotes AApoAII amyloidosis and peroxisome proliferation in mice by activating the PPARα signaling pathway

    Jian Dai et al.
    Curcumin regulates gene expression via PPARa activation and exhibits biological activities involved in amyloidosis, peroxisome proliferation, lipid metabolism, and hepatocyte hypertrophy.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Topoisomerase VI senses and exploits both DNA crossings and bends to facilitate strand passage

    Timothy J Wendorff, James M Berger
    The engagement of DNA crossings is shown to license ATP hydrolysis and DNA cleavage by topoisomerase VI, a finding with mechanistic ramifications for related GHKL ATPases and meiotic recombination machineries.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Methylated cis-regulatory elements mediate KLF4-dependent gene transactivation and cell migration

    Jun Wan et al.
    A new paradigm of DNA methylation mediated gene activation and chromatin remodeling provides a general framework to dissect the biological functions of DNA methylation readers and effectors.

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