Results 71 to 80 of about 311,782 (303)

Shielding of actin by the endoplasmic reticulum impacts nuclear positioning

Nature Communications, 2022
The nucleus connects to the actin cytoskeleton for nuclear movement in migrating cells. Here, the authors show that the endoplasmic reticulum shields actin cables to generate asymmetric nucleo-cytoskeleton connections for nuclear positioning.
Cátia Silva Janota, Andreia Pinto, Anna Pezzarossa, Pedro Machado, Judite Costa, Pedro Campinho, Cláudio A. Franco, Edgar R. Gomes   +7 more
doaj   +1 more source

Actin Dynamics at the T Cell Synapse as Revealed by Immune-Related Actinopathies

Frontiers in Cell and Developmental Biology, 2021
The actin cytoskeleton is composed of dynamic filament networks that build adaptable local architectures to sustain nearly all cellular activities in response to a myriad of stimuli. Although the function of numerous players that tune actin remodeling is
Loïc Dupré, Loïc Dupré, Loïc Dupré, Kaan Boztug, Kaan Boztug, Kaan Boztug, Kaan Boztug, Kaan Boztug, Laurène Pfajfer, Laurène Pfajfer, Laurène Pfajfer, Laurène Pfajfer   +11 more
doaj   +1 more source

Actin dynamics controlled by IqgC, a RasGAP at the crossroads between the IQGAP and fungal GAP1 families

FEBS Open Bio, EarlyView.
IqgC is a RasGAP from Dictyostelium discoideum. IqgC binds RasG via its RasGAP domain and deactivates it on macroendocytic cups, thereby suppressing the uptake of fluid and particles. IqgC has a positive effect on cell‐substratum adhesion, and its RGCt domain is required for recruitment to ventral foci.
Vedrana Filić, Darija Putar, Lucija Mijanović, Igor Weber   +3 more
wiley   +1 more source

Synthesis of spectrin in avian erythroid cells: association of nascent polypeptide chains with the cytoskeleton [PDF]

, 1983
The site of synthesis of spectrin was investigated in erythroid cells from 10-day chicken embryos. After various periods of [35S]methionine incorporation the cells were lysed in a Triton X-100 (TX-100)-containing buffer and were separated into a TX-100 ...
Blikstad, Ingrid, Lazarides, Elias
core   +2 more sources

Homologous expression and purification of human HAX‐1 for structural studies

FEBS Open Bio, EarlyView.
This research protocol provides detailed instructions for cloning, expressing, and purifying large quantities of the intrinsically disordered human HAX‐1 protein, N‐terminally fused to a cleavable superfolder GFP, from mammalian cells. HAX‐1 is predicted to undergo posttranslational modifications and to interact with membranes, various cellular ...
Mariana Grieben
wiley   +1 more source

RPGR protein complex regulates proteasome activity and mediates store-operated calcium entry [PDF]

, 2018
Ciliopathies are a group of genetically heterogeneous disorders, characterized by defects in cilia genesis or maintenance. Mutations in the RPGR gene and its interacting partners, RPGRIP1 and RPGRIP1L, cause ciliopathies, but the function of their ...
Aguirre, Anselme, Aravind, Beales, Bergen, Berger, Berson, Billaud, Burnside, Burridge, Cahalan, Carroll, Chapman, Cossart, Ferreira, Ferreira, Fuchs, Habas, He, Hildebrandt, Hogan, Imanishi, Jacobson, Johnson, Kaibuchi, Katsanis, Kaykas, Kelley, Khaliq, Khanna, Khanna, Kroes, Lewis, Li, Li, Li, MacDonald, MacDonald, Meyer, Mitchell, Nelson, Nishina, Nusse, Prevarskaya, Putney, Ridley, Roepman, Rosado, Rüther, Rüther, Sage, Schermer, Schneider-Maunoury, Shu, Stainier, Tolwinski, Torban, Vaudin, Vervoort, Vesque, Wallingford, Wittinghofer, Wolfrum, Wright, Wright, Wright, Wright, Wright, Zrenner   +68 more
core   +3 more sources

Super-Resolution Microscopy Reveals the Native Ultrastructure of the Erythrocyte Cytoskeleton

Cell Reports, 2018
Summary: The erythrocyte cytoskeleton is a textbook prototype for the submembrane cytoskeleton of metazoan cells. While early experiments suggest a triangular network of actin-based junctional complexes connected by ∼200-nm-long spectrin tetramers, later
Leiting Pan, Rui Yan, Wan Li, Ke Xu
doaj   +1 more source

ATG4B is required for mTORC1‐mediated anabolic activity and is associated with clinical outcomes in non‐small cell lung cancer

FEBS Open Bio, EarlyView.
The relationship between anabolic and catabolic processes governing lung cancer cell growth is nuanced. We show that ATG4B, an autophagy regulator, is elevated in lung cancer and that high ATG4B is associated with worse patient outcomes. Targeting ATG4B in cells reduces growth, protein synthesis, and mTORC1 activity, demonstrating a new relationship ...
Patrick J. Ryan, Bethany C. Guerra, Selina Uranga, Jessica M. Cardin, Steven E. Riechman, Mariana Janini Gomes, James D. Fluckey   +6 more
wiley   +1 more source

Actin-dependent mechanisms in AMPA receptor trafficking. [PDF]

, 2014
The precise regulation of AMPA receptor (AMPAR) number and subtype at the synapse is crucial for the regulation of excitatory neurotransmission, synaptic plasticity and the consequent formation of appropriate neural circuits during learning and memory ...
Hanley, Jonathan
core   +2 more sources

KLK7 overexpression promotes an aggressive phenotype and facilitates peritoneal dissemination in colorectal cancer cells

FEBS Open Bio, EarlyView.
KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani, Tobias Dreyer, Meriem Naim, Rea Lo Dico, Natalia A. Ignatenko, Viktor Magdolen, Dalila Darmoul   +6 more
wiley   +1 more source