Results 51 to 60 of about 2,343,531 (340)

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

The Structure of the Nuclear Pore Complex (An Update).

open access: yesAnnual Review of Biochemistry, 2019
The nuclear pore complex (NPC) serves as the sole bidirectional gateway of macromolecules in and out of the nucleus. Owing to its size and complexity (∼1,000 protein subunits, ∼110 MDa in humans), the NPC has remained one of the foremost challenges for ...
D. H. Lin, A. Hoelz
semanticscholar   +1 more source

Protocol to image and quantify nuclear pore complexes using high-resolution laser scanning confocal microscopy

open access: yesSTAR Protocols, 2023
Summary: Nuclear pore complexes are pathways for nuclear-cytoplasmic communication that participate in chromatin organization. Here, we present a protocol to image and quantify the number of nuclear pore complexes in cells.
Jocelyn D. Mich-Basso, Bernhard Kühn
doaj  

New Family Members of FG Repeat Proteins and Their Unexplored Roles During Phase Separation

open access: yesFrontiers in Cell and Developmental Biology, 2021
The condensation and compartmentalization of biomacromolecules in the cell are driven by the process of phase separation. The main effectors of phase separation are intrinsically disordered proteins, which include proteins with a phenylalanine-glycine ...
Yoichi Shinkai   +2 more
doaj   +1 more source

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   +3 more sources

The nuclear pore‐targeting complex binds to nuclear pores after association with a karyophile [PDF]

open access: yesFEBS Letters, 1995
We recently showed that a karyophilic protein forms a stable complex, termed nuclear pore‐targeting complex (PTAC), with cytoplasmic components prior to nuclear porebinding. In this study, we cloned a cDNA encoding a 97 kDa of PTAC (PTAC97). Recombinant PTAC97 completely reconstitutes the nuclear binding‐step in conjunction with a 58 kDa component of ...
Shingo Kose   +8 more
openaire   +2 more sources

Role of SAGA in the asymmetric segregation of DNA circles during yeast ageing

open access: yeseLife, 2014
In eukaryotes, intra-chromosomal recombination generates DNA circles, but little is known about how cells react to them. In yeast, partitioning of such circles to the mother cell at mitosis ensures their loss from the population but promotes replicative ...
Annina Denoth-Lippuner   +3 more
doaj   +1 more source

TFEB/Mitf links impaired nuclear import to autophagolysosomal dysfunction in C9-ALS

open access: yeseLife, 2020
Disrupted nucleocytoplasmic transport (NCT) has been implicated in neurodegenerative disease pathogenesis; however, the mechanisms by which disrupted NCT causes neurodegeneration remain unclear.
Kathleen M Cunningham   +13 more
doaj   +1 more source

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

The nuclear pore primes recombination-dependent DNA synthesis at arrested forks by promoting SUMO removal

open access: yesNature Communications, 2020
In yeast, collapsed forks shift to the nuclear periphery to associate with two distinct perinuclear anchorage sites such as the nuclear pore complex. Here, the authors reveal the mechanisms engaged at nuclear pore complex facilitating fork integrity and ...
Karol Kramarz   +7 more
doaj   +1 more source

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