83 results found
    1. Structural Biology and Molecular Biophysics

    Periodic DNA patrolling underlies diverse functions of Pif1 on R-loops and G-rich DNA

    Ruobo Zhou et al.
    Analyzing single molecules reveals that Pif1 family helicases periodically patrol DNA, which may explain this enzyme's ability to suppress genome instability at G-quadruplex motifs and transcriptional RNA-DNA hybrids (R-loops).
    1. Plant Biology

    Shade-induced nuclear localization of PIF7 is regulated by phosphorylation and 14-3-3 proteins in Arabidopsis

    Xu Huang et al.
    A phosphorylation dependent translocation of PIF7 and involvement of 14-3-3 proteins reveal novel regulation mechanisms in shade signal transduction.
    1. Plant Biology

    BLADE-ON-PETIOLE proteins act in an E3 ubiquitin ligase complex to regulate PHYTOCHROME INTERACTING FACTOR 4 abundance

    Bo Zhang et al.
    The abundance of the PIF4 transcription factor, central in light and temperature signaling, is controlled by an E3 ligase encoded by BOP proteins.
    1. Chromosomes and Gene Expression

    A sharp Pif1-dependent threshold separates DNA double-strand breaks from critically short telomeres

    Jonathan Strecker et al.
    A sharp transition in the fate of DNA ends with telomere sequences is identified, which suggests a boundary between DNA double-strand breaks and telomeres.
    1. Structural Biology and Molecular Biophysics

    DNA Helicases: Molecular watchdogs on genome patrol

    Gheorghe Chistol, Johannes Walter
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    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.
    1. Plant Biology

    Plant Biology: When the time is ripe

    Siobhan M Brady
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    1. Cell Biology

    Spatiotemporal regulation of autophagy during Caenorhabditis elegans aging

    Jessica T Chang et al.
    Autophagic flux assays in the nematode Caenorhabditis elegans suggest that autophagy decreases during normal aging, whereas long-lived daf-2 and glp-1 mutants maintain autophagic capacity in distinct spatiotemporal-specific manners to extend lifespan.
    1. Biochemistry and Chemical Biology

    Coupling between the DEAD-box RNA helicases Ded1p and eIF4A

    Zhaofeng Gao et al.
    Ded1p and eIF4A, two RNA helicases that function in eukaryotic translation initiation, interact physically with each other and with the scaffolding protein eIF4G.
    1. Cell Biology

    Centriolar SAS-7 acts upstream of SPD-2 to regulate centriole assembly and pericentriolar material formation

    Kenji Sugioka et al.
    A genetic screen and live cell imaging show that a newly identified coiled-coil protein called SAS-7 is the earliest acting factor in centriole assembly yet identified in the roundworm Caenorhabditis elegans.

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