Results 61 to 70 of about 610,101 (198)

Active Targeting of the Nucleus Using Nonpeptidic Boronate Tags.

open access: yesJournal of the American Chemical Society, 2017
Active intracellular transport is a central mechanism in cell biology, directed by a limited set of naturally occurring signaling peptides. Here, we report the first nonpeptide moiety that recruits intracellular transport machinery for nuclear targeting.
Rui Tang   +6 more
semanticscholar   +1 more source

Active diffusion positions the nucleus in mouse oocytes

open access: yesNature Cell Biology, 2015
In somatic cells, the position of the cell centroid is dictated by the centrosome. The centrosome is instrumental in nucleus positioning, the two structures being physically connected.
M. Almonacid   +7 more
semanticscholar   +1 more source

Protoparvovirus Knocking at the Nuclear Door

open access: yesViruses, 2017
Protoparvoviruses target the nucleus due to their dependence on the cellular reproduction machinery during the replication and expression of their single-stranded DNA genome.
Elina Mäntylä   +2 more
doaj   +1 more source

Nanoscale protein diffusion by STED-based pair correlation analysis. [PDF]

open access: yesPLoS ONE, 2014
We describe for the first time the combination between cross-pair correlation function analysis (pair correlation analysis or pCF) and stimulated emission depletion (STED) to obtain diffusion maps at spatial resolution below the optical diffraction limit
Paolo Bianchini   +4 more
doaj   +1 more source

A possible mechanism for self coordination of bi-directional traffic across nuclear pores [PDF]

open access: yesPhys. Biol. 5, 036001 (2008), 2008
Nuclear pore complexes are constantly confronted by large fluxes of macromolecules and macromolecular complexes that need to get into and out of the nucleus. Such bi-directional traffic occurring in a narrow channel can easily lead to jamming. How then is passage between the nucleus and cytoplasm maintained under the varying conditions that arise ...
arxiv   +1 more source

Spatial Organization of the Cytoskeleton enhances Cargo Delivery to Specific Target Areas on the Plasma Membrane of Spherical Cells [PDF]

open access: yes, 2016
Intracellular transport is vital for the proper functioning and survival of a cell. Cargo (proteins, vesicles, organelles, etc.) is transferred from its place of creation to its target locations via molecular motor assisted transport along cytoskeletal ...
Hafner, Anne E., Rieger, Heiko
core   +2 more sources

Quantifying intermittent transport in cell cytoplasm [PDF]

open access: yes, 2008
Active cellular transport is a fundamental mechanism for protein and vesicle delivery, cell cycle and molecular degradation. Viruses can hijack the transport system and use it to reach the nucleus. Most transport processes consist of intermittent dynamics, where the motion of a particle, such as a virus, alternates between pure Brownian and directed ...
arxiv   +1 more source

The influence of nucleus mechanics in modelling adhesion-independent cell migration in structured and confined environments [PDF]

open access: yesarXiv, 2022
Recent biological experiments have shown that certain types of cells are able to move in structured and confined environment even without the activation of focal adhesion. Focusing on this particular phenomenon and based on previous works, we derive a novel two-dimensional mechanical model, which relies on the following physical ingredients: the ...
arxiv  

Energetic constraints on filament mediated cell polarization [PDF]

open access: yes, 2021
Cell polarization underlies many cellular processes, such as differentiation, migration, and budding. Many living cells, such as budding yeast and fission yeast, use cytoskeletal structures to actively transport proteins to one location on the membrane and create a high density spot of membrane-bound proteins.
arxiv   +1 more source

Roles of Cross-Membrane Transport and Signaling in the Maintenance of Cellular Homeostasis [PDF]

open access: yes, 2016
Organelles allow specialized functions within cells to be localized, contained and independently regulated. This separation is oftentimes achieved by selectively permeable membranes, which enable control of molecular transport, signaling between ...
Inchul Cho, Joe Swift, Mark R. Jackson
core   +2 more sources

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