Results 21 to 30 of about 662,881 (280)

Multiple Roles of Actin in Exo- and Endocytosis

open access: yesFrontiers in Synaptic Neuroscience, 2022
Cytoskeletal filamentous actin (F-actin) has long been considered a molecule that may regulate exo- and endocytosis. However, its exact roles remained elusive.
Ling-Gang Wu, Chung Yu Chan
doaj   +1 more source

Tube Width Fluctuations in F-Actin Solutions [PDF]

open access: yes, 2010
We determine the statistics of the local tube width in F-actin solutions, beyond the usually reported mean value. Our experimental observations are explained by a segment fluid theory based on the binary collision approximation (BCA).
B. Hoffmann   +9 more
core   +2 more sources

Cooperation between tropomyosin and α-actinin inhibits fimbrin association with actin filament networks in fission yeast

open access: yeseLife, 2019
We previously discovered that competition between fission yeast actin binding proteins (ABPs) for binding F-actin facilitates their sorting to different cellular networks.
Jenna R Christensen   +7 more
doaj   +1 more source

Sensing Actin Dynamics through Adherens Junctions

open access: yesCell Reports, 2020
Summary: We study punctate adherens junctions (pAJs) to determine how short-lived cadherin clusters and relatively stable actin bundles interact despite differences in dynamics.
Indrajyoti Indra   +4 more
doaj   +1 more source

Actin depolymerizing factor ADF7 inhibits actin bundling protein VILLIN1 to regulate root hair formation in response to osmotic stress in Arabidopsis.

open access: yesPLoS Genetics, 2022
Actin cytoskeleton is essential for root hair formation. However, the underlying molecular mechanisms of actin dynamics in root hair formation in response to abiotic stress are largely undiscovered. Here, genetic analysis showed that actin-depolymerizing
Shuangtian Bi   +11 more
doaj   +1 more source

Tyrosine phosphorylation of cortactin by the FAK-Src complex at focal adhesions regulates cell motility. [PDF]

open access: yes, 2011
BackgroundCell migration plays an important role in many physiological and pathological processes, including immune cell chemotaxis and cancer metastasis.
Liao, Kan, Liu, Yang, Wang, Wenqi
core   +2 more sources

Competition between Tropomyosin, Fimbrin, and ADF/Cofilin drives their sorting to distinct actin filament networks

open access: yeseLife, 2017
The fission yeast actin cytoskeleton is an ideal, simplified system to investigate fundamental mechanisms behind cellular self-organization. By focusing on the stabilizing protein tropomyosin Cdc8, bundling protein fimbrin Fim1, and severing protein ...
Jenna R Christensen   +6 more
doaj   +1 more source

The Chlamydia trachomatis Early Effector Tarp Outcompetes Fascin in Forming F-Actin Bundles In Vivo

open access: yesFrontiers in Cellular and Infection Microbiology, 2022
The intracellular pathogen Chlamydia trachomatis secretes multiple early effectors into the host cell to promote invasion. A key early effector during host cell entry, Tarp (translocated actin-recruiting phosphoprotein) is comprised of multiple protein ...
George F. Aranjuez   +2 more
doaj   +1 more source

Multiple Conformations of F-actin [PDF]

open access: yesStructure, 2010
Actin works within eukaryotic cells to facilitate a variety of cellular processes, which are driven by the assembly of G-actin (monomeric form) into F-actin (fibrous form), and the disassembly of F-actin into G-actin. F-actin adopts multiple conformations, which are specified by interactions with various actin-binding proteins.
Oda, Toshiro, Maéda, Yuichiro
openaire   +2 more sources

Molecular mechanism for direct actin force-sensing by α-catenin

open access: yeseLife, 2020
The actin cytoskeleton mediates mechanical coupling between cells and their tissue microenvironments. The architecture and composition of actin networks are modulated by force; however, it is unclear how interactions between actin filaments (F-actin) and
Lin Mei   +5 more
doaj   +1 more source

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