26 results found
    1. Structural Biology and Molecular Biophysics

    Spatial structure of disordered proteins dictates conductance and selectivity in nuclear pore complex mimics

    Adithya N Ananth et al.
    Biomimetic nanopores reveal that the sequence-dependent spatial distribution of intrinsically disordered proteins plays a crucial role in establishing the selective permeability barrier of the nuclear pore complex.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Nuclear pore heterogeneity influences HIV-1 infection and the antiviral activity of MX2

    Melissa Kane et al.
    Comprehensive investigation reveals the variability and importance of the nuclear pore complex in HIV-1 infection and the activity of the antiretroviral protein, MX2.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Investigating molecular crowding within nuclear pores using polarization-PALM

    Guo Fu et al.
    The super-resolution fluorescence microscopy approach polarization PALM (p-PALM) reveals that macromolecular crowding and inhomogeneity within nuclear pores generate a structurally and dynamically complex permeability barrier.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Extensive cargo identification reveals distinct biological roles of the 12 importin pathways

    Makoto Kimura et al.
    Transport-based high-throughput identification of cargo proteins specific to all 12 human importin-β family nuclear import receptors revealed biological processes that the cargo cohorts of each receptor are involved in.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Importin-β modulates the permeability of the nuclear pore complex in a Ran-dependent manner

    Alan R Lowe et al.
    The Ran GTPase plays a role in defining the physical properties of the nuclear pore complex transport channel by remodeling the binding interactions of importin-β with the nucleoporin Nup153 at the nuclear face of the pore.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Scaffold nucleoporins Nup188 and Nup192 share structural and functional properties with nuclear transport receptors

    Kasper R Andersen et al.
    Components of the nuclear pore complex share structural and functional features with soluble nuclear transport receptors, which suggests that there may be an evolutionary relationship between these two types of protein.
    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. Nuclear pore assembly proceeds by an inside-out extrusion of the nuclear envelope

    Shotaro Otsuka et al.
    Nuclear pores assemble asymmetrically, by an inside-out evagination of the inner nuclear membrane that grows in diameter and depth until it fuses with the flat outer nuclear membrane.
    1. Cell Biology

    Mitotic progression, arrest, exit or death relies on centromere structural integrity, rather than de novo transcription

    Marco Novais-Cruz et al.
    Direct live-cell imaging of human cells, combined with RNA-seq, qPCR and in vitro reconstitution essays, reveal that mitotic progression, arrest, exit or death is independent of de novo transcription.
    1. Cell Biology

    Human Nup98 regulates the localization and activity of DExH/D-box helicase DHX9

    Juliana S Capitanio et al.
    Mechanistic insight into the role of intranuclear Nup98 in gene expression is revealed by functional interactions with the helicase DHX9.

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