Results 31 to 40 of about 326,922 (335)

OCTAGONAL NUCLEAR PORES [PDF]

open access: yesThe Journal of Cell Biology, 1967
Negative staining of isolated nuclear envelopes by phosphotungstate shows that the nuclear pores are octagonal rather than circular. Pores of the same shape and approximately the same width, 663 ± 5 A, were demonstrated in the newt, Triturus, the frog, Rana, and the starfish, Henricia.
openaire   +2 more sources

Herpes simplex virus ICP27 protein directly interacts with the nuclear pore complex through NUP62, inhibiting host nucleocytoplasmic transport pathways [PDF]

open access: yes, 2012
The herpes simplex virus ICP27 protein is important for the expression and nuclear export of viral mRNAs. Although several binding sites have been mapped along the ICP27 sequence for various RNA and protein partners including the transport receptor TAP ...
Arnold   +83 more
core   +3 more sources

Pore structure characterization based on joint numerical and experimental study: a case study of Nanpu Sag

open access: yesJournal of Petroleum Exploration and Production Technology, 2019
Petrophysical properties such as acoustic velocity, resistivity and nuclear magnetic resonance are greatly depending on the pore structures. This is because the pore structures could control the elastic modulus, conductive path and seepage distribution ...
Hatitao Li   +4 more
doaj   +1 more source

Nup98-dependent transcriptional memory is established independently of transcription

open access: yeseLife, 2022
Cellular ability to mount an enhanced transcriptional response upon repeated exposure to external cues is termed transcriptional memory, which can be maintained epigenetically through cell divisions and can depend on a nuclear pore component Nup98.
Pau Pascual-Garcia   +2 more
doaj   +1 more source

Energy- and temperature-dependent transport of integral proteins to the inner nuclear membrane via the nuclear pore [PDF]

open access: yes, 2004
Resident integral proteins of the inner nuclear membrane (INM) are synthesized as membrane-integrated proteins on the peripheral endoplasmic reticulum (ER) and are transported to the INM throughout interphase using an unknown trafficking mechanism.
Gerace, Larry   +3 more
core   +3 more sources

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

Mitotically heritable, RNA polymerase II-independent H3K4 dimethylation stimulates INO1 transcriptional memory

open access: yeseLife, 2022
For some inducible genes, the rate and molecular mechanism of transcriptional activation depend on the prior experiences of the cell. This phenomenon, called epigenetic transcriptional memory, accelerates reactivation, and requires both changes in ...
Bethany Sump   +4 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   +2 more sources

Establishment and inheritance of epigenetic transcriptional memory

open access: yesFrontiers in Molecular Biosciences, 2022
For certain inducible genes, the rate and molecular mechanism of transcriptional activation depends on the prior experiences of the cell. This phenomenon, called epigenetic transcriptional memory, accelerates reactivation and requires both changes in ...
Bethany Sump, Jason Brickner
doaj   +1 more source

A novel function for the Caenorhabditis elegans torsin OOC-5 in nucleoporin localization and nuclear import. [PDF]

open access: yes, 2015
Torsin proteins are AAA+ ATPases that localize to the endoplasmic reticular/nuclear envelope (ER/NE) lumen. A mutation that markedly impairs torsinA function causes the CNS disorder DYT1 dystonia. Abnormalities of NE membranes have been linked to torsinA
Dauer, William T   +4 more
core   +2 more sources

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