4,623 results found
    1. Cell Biology

    Exportin Crm1 is repurposed as a docking protein to generate microtubule organizing centers at the nuclear pore

    Xun X Bao et al.
    Microtubule nucleation from the nuclear envelope in fission yeast involves repurposing of nuclear export proteins for a non-export-related function, docking cytoplasmic proteins at nuclear pore complexes.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Dna2 nuclease-helicase structure, mechanism and regulation by Rpa

    Chun Zhou et al.
    X-ray crystallography reveals that the Dna2 nuclease-helicase contains a long tunnel through which single-stranded DNA threads, and an allosteric mechanism for displacing the DNA-binding protein Rpa that restricts cleavage to the proper polarity.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular determinants of large cargo transport into the nucleus

    Giulia Paci et al.
    Efficient nuclear transport of very large biomolecules, relevant for viral transport, scales non-linearly with size and its kinetics can be explained by a simple two-parameter energetic model.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    SON and SRRM2 are essential for nuclear speckle formation

    İbrahim Avşar Ilik et al.
    Re-characterization of the targets of a commonly used nuclear speckle marker unexpectedly leads to the discovery of the elusive core of the nuclear speckles.
    1. Chromosomes and Gene Expression

    piRNA-guided co-transcriptional silencing coopts nuclear export factors

    Martin H Fabry et al.
    A member of the Drosophila Nuclear Export Factor (Nxf) family, Nxf2, forms part of the piRNA-dependent co-transcriptional silencing complex and is essential for transposon repression in fly ovaries.
    1. Neuroscience

    Human subthalamic nucleus activity during non-motor decision making

    Baltazar A Zavala et al.
    Intraoperative human brain recordings during a memory task reveal that when participants inhibit memory formation, the subthalamic nucleus shows higher beta power and beta coherence with areas of the lateral cortex implicated in memory processing.
    1. Cell Biology
    2. Neuroscience

    Hypoxia-inducible factor cell non-autonomously regulates C. elegans stress responses and behavior via a nuclear receptor

    Corinne L Pender, H Robert Horvitz
    The hypoxia-inducible factor HIF drives transcription of the gene cyp-36A1, which encodes a cytochrome P450 enzyme that acts via a putative intercellular signal to regulate the nuclear receptor NHR-46 and consequently stress resistance and behavior.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Single nucleus sequencing reveals evidence of inter-nucleus recombination in arbuscular mycorrhizal fungi

    Eric CH Chen et al.
    Arbuscular mycorrhizal fungi generate nuclear diversity in the dikaryotic life-stage stage via inter-nucleus recombination.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Distinct and evolutionary conserved structural features of the human nuclear exosome complex

    Piotr Gerlach et al.
    Cryo-EM structure and biochemical characterization of the human nuclear exosome reveals its specific properties with respect to the yeast complex, underscoring the evolutionary conservation of the RNA-channeling mechanisms and hMTR4 helicase recruitment.
    1. Cell Biology

    Conformation of the nuclear pore in living cells is modulated by transport state

    Joan Pulupa et al.
    Polarized fluorescence microscopy of individual nuclear pores in vivo reveals conformational changes in select domains of proteins of the inner ring.

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