Results 91 to 100 of about 56,819 (220)

Complex interplay between RAS GTPases and RASSF effectors regulates subcellular localization of YAP

open access: yesEMBO Reports
RAS GTPases bind effectors to convert upstream cues to changes in cellular function. Effectors of classical H/K/NRAS are defined by RBD/RA domains which recognize the GTP-bound conformation of these GTPases, yet the specificity of RBD/RAs for over 160 ...
Swati Singh   +4 more
doaj   +1 more source

Regulation of Cdc42 for polarized growth in budding yeast

open access: yesMicrobial Cell, 2020
The Rho GTPase Cdc42 is a central regulator of cell polarity in diverse cell types. The activity of Cdc42 is dynamically controlled in time and space to enable distinct polarization events, which generally occur along a single axis in response to spatial
Kristi E. Miller   +2 more
doaj   +1 more source

Clostridium difficile toxin B acts on the GTP-binding protein Rho.

open access: yesJournal of Biological Chemistry, 1994
Clostridium difficile toxin B exhibits cytotoxic activity that is characterized by the disruption of the microfilamental cytoskeleton. Here we studied whether the GTP-binding Rho protein, which reportedly participates in the regulation of the actin cytoskeleton, is involved in the toxin action. Toxin B treatment of Chinese hamster ovary cells reveals a
I, Just   +7 more
openaire   +2 more sources

Transcription of photosynthetic genes in the plant chloroplast: lessons from bacteria

open access: yesThe Plant Journal, Volume 126, Issue 5, June 2026.
SUMMARY The RNA polymerase that transcribes photosynthetic genes in the plant chloroplast is the largest known transcription enzyme across all domains of life, comprising 21 subunits of bacterial and eukaryotic origin. Recent structural analyses revealed that the core polymerase, inherited from the cyanobacterial ancestor of the chloroplast, is encased
Jessica Moon   +5 more
wiley   +1 more source

Kinesin‐Induced Buckling Reveals the Limits of Microtubule Self‐Repair

open access: yesAdvanced Science, Volume 13, Issue 26, 8 May 2026.
This study shows that kinesin‐driven buckling induces extensive microtubule lattice damage that often exceeds intrinsic self‐repair and leads to filament failure. While curvature, motor motility, and force individually cause limited damage, their combination overwhelms repair.
Shweta Nandakumar   +9 more
wiley   +1 more source

Loss of ARHGEF6 Causes Hair Cell Stereocilia Deficits and Hearing Loss in Mice

open access: yesFrontiers in Molecular Neuroscience, 2018
ARHGEF6 belongs to the family of guanine nucleotide exchange factors (GEFs) for Rho GTPases, and it specifically activates Rho GTPases CDC42 and RAC1.
Chengwen Zhu   +35 more
doaj   +1 more source

Deciphering the Impact of RAC1‐SPTAN1 in ARPKD Cystogenesis Using Multifaceted Models

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
Distal/connecting tubules expressing SLC8A1 have been suggested as a potential origin of ARPKD cysts. SPTAN1 has been identified as a key molecule in ARPKD cyst formation. Restoring SPTAN1 in PKHD1−/− organoids reduced cyst formation, normalized calcium levels, and decreased RAC1/c‐FOS expression, highlighting SPTAN1's role in ARPKD and the potential ...
Shohei Kuraoka   +9 more
wiley   +1 more source

From immunity to community: A predictive trait space model for white plague disease on Caribbean reefs

open access: yesEcosphere, Volume 17, Issue 5, May 2026.
Abstract Disease outbreaks have played important roles in structuring communities. Therefore, the ability of individuals within populations to resist disease and their corresponding immune and molecular‐scale traits may provide a basis for predicting community dynamics of ecosystems facing disease outbreaks.
Sara D. Williams   +5 more
wiley   +1 more source

Variants in genes encoding small GTPases and association with epithelial ovarian cancer susceptibility.

open access: yesPLoS ONE, 2018
Epithelial ovarian cancer (EOC) is the fifth leading cause of cancer mortality in American women. Normal ovarian physiology is intricately connected to small GTP binding proteins of the Ras superfamily (Ras, Rho, Rab, Arf, and Ran) which govern processes
Madalene Earp   +148 more
doaj   +1 more source

Dynamin as a Mover and Pincher during Cell Migration and Invasion [PDF]

open access: yes, 2006
The large GTPase dynamin, long known for its role in endocytosis, has most recently been implicated as a facilitator of cell migration and invasion. Recent observations link dynamin to the cycle of membrane expansion and retraction essential for cell ...
Kruchten, Anne E., McNiven, Mark A.
core   +2 more sources

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