Results 21 to 30 of about 114,835 (256)

Caspase-mediated nuclear pore complex trimming in cell differentiation and endoplasmic reticulum stress

open access: yeseLife, 2023
During apoptosis, caspases degrade 8 out of ~30 nucleoporins to irreversibly demolish the nuclear pore complex. However, for poorly understood reasons, caspases are also activated during cell differentiation.
Ukrae H Cho, Martin W Hetzer
doaj   +1 more source

Nuclear Envelope: Nuclear Pore Complexity [PDF]

open access: yesCurrent Biology, 2005
A new study shows that the filamentous fungus, Aspergillus nidulans, which has a closed mitosis, does not maintain a continuous permeability barrier during mitosis. This work challenges current views of the differences between closed and open mitosis and has implications for understanding mitotic specific changes in the nuclear pore complex and Ran ...
openaire   +2 more sources

Redox-Sensitive Cysteines Confer Proximal Control of the Molecular Crowding Barrier in the Nuclear Pore

open access: yesCell Reports, 2020
Summary: The nuclear pore complex forms a highly crowded selective barrier with intrinsically disordered regions at the nuclear membrane to coordinate nucleocytoplasmic molecular communications.
Wanzhen Zhang   +5 more
doaj   +1 more source

RNA export through the nuclear pore complex is directional

open access: yesNature Communications, 2022
There is little information on export directionality of RNA passing through the nuclear pore complex in human cells. Here, the authors examine single RNA molecules in transit, to demonstrate 5’-first directionality for the export of mRNA and lncRNA.
Asaf Ashkenazy-Titelman   +4 more
doaj   +1 more source

Nup133 Is Required for Proper Nuclear Pore Basket Assembly and Dynamics in Embryonic Stem Cells

open access: yesCell Reports, 2018
Summary: Nup133 belongs to the Y-complex, a key component of the nuclear pore complex (NPC) scaffold. Studies on a null mutation in mice previously revealed that Nup133 is essential for embryonic development but not for mouse embryonic stem cell (mESC ...
Benoit Souquet   +7 more
doaj   +1 more source

Poring over pores: nuclear pore complex insertion into the nuclear envelope

open access: yesTrends in Biochemical Sciences, 2013
The nuclear boundary is formed by the nuclear envelope (NE), a double membrane system that establishes a selective barrier between the nucleoplasm and the cytoplasm. Its barrier characteristics are determined by nuclear pore complexes (NPCs); huge protein assemblies that guard nucleocytoplasmic compartmentalization.
Rothballer Andrea, Kutay Ulrike
openaire   +3 more sources

Nuclear pore protein NUP210 depletion suppresses metastasis through heterochromatin-mediated disruption of tumor cell mechanical response

open access: yesNature Communications, 2021
The involvement of nuclear pore proteins in cellular mechanosensing and metastasis is unclear. Here the authors identify that nuclear pore protein NUP210 promotes metastasis through the interaction with mechanotransducer LINC complex protein and ...
Ruhul Amin   +17 more
doaj   +1 more source

Temporal Changes in Nuclear Envelope Permeability during Semi-Closed Mitosis in Dictyostelium Amoebae

open access: yesCells, 2023
The Amoebozoan Dictyostelium discoideum exhibits a semi-closed mitosis in which the nuclear membranes remain intact but become permeabilized to allow tubulin and spindle assembly factors to access the nuclear interior.
Kristina Mitic   +3 more
doaj   +1 more source

Quantitative analysis of nuclear pore complex organization in Schizosaccharomyces pombe

open access: yesLife Science Alliance, 2022
Characterization of nuclear pores in Schizosaccharomyces pombe identifies regions of heterogeneous NPC density and composition and shows that NPCs are excluded near the spindle pole body by Lem2-mediated centromere tethering.
Joseph M Varberg   +4 more
doaj   +1 more source

Nuclear pore complex biogenesis

open access: yesCurrent Opinion in Cell Biology, 2009
Nuclear pore complexes (NPCs) are the sole mediators of transport between the nucleus and the cytoplasm. NPCs have a life cycle: they assemble, disassemble, turnover, and age. The molecular mechanisms governing these different vital steps are beginning to emerge, suggesting key roles for the core structural scaffold of the NPC and auxiliary factors in ...
Javier, Fernandez-Martinez   +1 more
openaire   +3 more sources

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