Results 91 to 100 of about 2,248,811 (276)

Nuclear pore complexes as hubs for gene regulation

open access: yesThe Nucleus, 2018
Nuclear pore complexes (NPCs), the channels connecting the nucleus with the cytoplasm, are the largest protein structures of the nuclear envelope. In addition to their role in regulating nucleocytoplasmic transport, increasing evidence shows that these ...
Maximiliano A. D’Angelo
semanticscholar   +1 more source

Novel antibodies detect nucleocytoplasmic O-fucose in protist pathogens, cellular slime molds, and plants

open access: yesmSphere
Cellular adaptations to change often involve post-translational modifications of nuclear and cytoplasmic proteins. An example found in protists and plants is the modification of serine and threonine residues of dozens to hundreds of nucleocytoplasmic ...
Megna Tiwari   +11 more
doaj   +1 more source

The molecular mechanism of nuclear transport revealed by atomic-scale measurements

open access: yeseLife, 2015
Nuclear pore complexes (NPCs) form a selective filter that allows the rapid passage of transport factors (TFs) and their cargoes across the nuclear envelope, while blocking the passage of other macromolecules.
Loren E Hough   +7 more
doaj   +1 more source

Evolution: functional evolution of nuclear structure. [PDF]

open access: yes, 2011
The evolution of the nucleus, the defining feature of eukaryotic cells, was long shrouded in speculation and mystery. There is now strong evidence that nuclear pore complexes (NPCs) and nuclear membranes coevolved with the endomembrane system, and that ...
Dawson, Scott C, Wilson, Katherine L
core  

A study of the porosity of nuclear graphite using small-angle neutron scattering [PDF]

open access: yes, 2013
Small angle neutron scattering (SANS) measures porosity in nuclear graphites, including both open pores, caused by escaping decomposition gases, and internal cracks (in coke particles) generated by anisotropic thermal contraction along the c-direction ...
Bale   +17 more
core   +1 more source

Permeating the nuclear pore complex [PDF]

open access: yesNucleus, 2010
The extensive and multifaceted traffic between nucleus and cytoplasm is handled by a single type of macromolecular assembly called the nuclear pore complex (NPC). While being readily accessible to ions and metabolites, the NPC imposes stringent selectivity on the passage of proteins and RNA, tightly regulating their traffic between the two major ...
Bracha Naim   +5 more
openaire   +3 more sources

WNT-mediated gene gating: a novel principle connecting oncogenic super-enhancers with the nuclear pore to drive pathological expression of MYC

open access: yesMolecular & Cellular Oncology, 2020
WNT signaling enhances MYC expression in cancer cells to increase the rate of cell proliferation. We have recently found that this principle involves the gating of MYC to nuclear pores mediated by an oncogenic super-enhancer in a ß-catenin-dependent ...
Anita Göndör
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

Nucleocytoplasmic transport: a thermodynamic mechanism

open access: yes, 2009
The nuclear pore supports molecular communication between cytoplasm and nucleus in eukaryotic cells. Selective transport of proteins is mediated by soluble receptors, whose regulation by the small GTPase Ran leads to cargo accumulation in, or depletion ...
Adam SA   +83 more
core   +2 more sources

Exotic mitotic mechanisms [PDF]

open access: yes, 2012
The emergence of eukaryotes around two billion years ago provided new challenges for the chromosome segregation machineries: the physical separation of multiple large and linear chromosomes from the microtubule-organizing centres by the nuclear envelope.
Drechsler, Hauke, McAinsh, Andrew D.
core   +1 more source

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