Results 51 to 60 of about 1,855,818 (295)

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

NUP-1 is a large coiled-coil nucleoskeletal protein in Trypanosomes with lamin-like functions [PDF]

open access: yes, 2012
A unifying feature of eukaryotic nuclear organization is genome segregation into transcriptionally active euchromatin and transcriptionally repressed heterochromatin.
Wan, Yakun   +91 more
core   +2 more sources

Characterization of the cellular functions of the nucleoporins Nup153 and Nup88 [PDF]

open access: yes, 2010
Characterization of the Cellular Functions of the Nucleoporins Nup153 and Nup88 PhD Thesis, Yvonne Christine Lussi, 2010, University of Basel Nuclear pore complexes (NPCs) and nuclear lamins are major constituents of the nuclear envelope (NE) in ...
Lussi, Yvonne Christine
core   +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

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

Yield stress fluids method to determine the pore size distribution of a porous medium [PDF]

open access: yes, 2014
In this paper a new method is presented in order to determine the pore size distribution in a porous medium. This original technique uses the rheological properties of some non-Newtonian yield stress fluids flowing through the porous sample.
AMBARI, Abdelhak   +2 more
core   +1 more source

Specific nuclear envelope transmembrane proteins can promote the location of chromosomes to and from the nuclear periphery [PDF]

open access: yes, 2013
BACKGROUND: Different cell types have distinctive patterns of chromosome positioning in the nucleus. Although ectopic affinity-tethering of specific loci can be used to relocate chromosomes to the nuclear periphery, endogenous nuclear envelope proteins ...
Vassiliki Lazou   +23 more
core   +1 more source

Modulation of actin polymerization affects nucleocytoplasmic transport in multiple forms of amyotrophic lateral sclerosis

open access: yesNature Communications, 2019
Although defects in nucleocytoplasmic transport (NCT) may be central to the pathogenesis of ALS, the molecular mechanisms modulating the nuclear pore function are still largely unknown.
Anthony Giampetruzzi   +8 more
doaj   +1 more source

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 ...
Naoko, Imamoto   +8 more
openaire   +2 more sources

Organellar proteomics: the prizes and pitfalls of opening the nuclear envelope [PDF]

open access: yes, 2002
Proteomic studies have the potential to comprehensively define the composition of organelles but are limited by the organellar cross-contamination that arises during subcellular fractionation.
Gerace, Larry, Schirmer, Eric C
core   +1 more source

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