The Targeting of the atToc159 Preprotein Receptor to the Chloroplast Outer Membrane is Mediated by its GTPase Domain and is Regulated by GTP [PDF]
, 2002 The multimeric translocon at the outer envelope membrane of chloroplasts (Toc) initiates the recognition and import of nuclear-encoded preproteins into chloroplasts.
Hiltbrunner, Andreas +3 more
core +2 more sources
Rheb GTPase is a direct target of TSC2 GAP activity and regulates mTOR signaling.
Genes & Development, 2003 Tuberous sclerosis complex (TSC) is a genetic disease caused by mutation in either TSC1 or TSC2. The TSC1 and TSC2 gene products form a functional complex and inhibit phosphorylation of S6K and 4EBP1.
K. Inoki, Yong Li, Tian Xu, K. Guan
semanticscholar +1 more source
A Rho family GTPase controls actin dynamics and tip growth via two counteracting downstream pathways in pollen tubes. [PDF]
, 2005 Tip growth in neuronal cells, plant cells, and fungal hyphae is known to require tip-localized Rho GTPase, calcium, and filamentous actin (F-actin), but how they interact with each other is unclear.
Dowd, Peter +6 more
core +3 more sources
Structural mechanism of a Rag GTPase activation checkpoint by the lysosomal folliculin complex
Science, 2019 Cellular response to nutrient status An intricate regulatory mechanism is taking shape around control of the mechanistic target of rapamycin complex 1 (mTORC1) protein kinase complex. Physiological responses of cells to nutrient abundance is regulated by
R. Lawrence +10 more
semanticscholar +1 more source
Domain interactions within Fzo1 oligomers are essential for mitochondrial fusion [PDF]
, 2006 Mitofusins are conserved GTPases essential for the fusion of mitochondria. These mitochondrial outer membrane proteins contain a GTPase domain and two or three regions with hydrophobic heptad repeats, but little is known about how these domains interact ...
Chan, David C., Griffin, Erik E.
core +3 more sources
Regulation of the Neuron-specific Ras GTPase-activating Protein, synGAP, by Ca2+/Calmodulin-dependent Protein Kinase II [PDF]
, 2004 synGAP is a neuron-specific Ras GTPase-activating protein found in high concentration in the postsynaptic density fraction from mammalian forebrain. Proteins in the postsynaptic density, including synGAP, are part of a signaling complex attached to the ...
Kennedy, Mary B. +2 more
core +1 more source
The formin FHOD1 and the small GTPase Rac1 promote vaccinia virus actin-based motility [PDF]
, 2013 Vaccinia virus dissemination relies on the N-WASP– ARP2/3 pathway, which mediates actin tail formation underneath cell-associated extracellular viruses (CEVs).
Alberts +79 more
core +2 more sources
Multiple Roles of the Small GTPase Rab7
Cells, 2016 Rab7 is a small GTPase that belongs to the Rab family and controls transport to late endocytic compartments such as late endosomes and lysosomes. The mechanism of action of Rab7 in the late endocytic pathway has been extensively studied.
Flora Guerra, C. Bucci
semanticscholar +1 more source
Identifying conformational changes with site-directed spin labeling reveals that the GTPase domain of HydF is a molecular switch [PDF]
, 2017 [FeFe]-hydrogenases catalyse the reduction of protons to hydrogen at a complex 2Fe[4Fe4S] center called H-cluster. The assembly of this active site is a multistep process involving three proteins, HydE, HydF and HydG.
Acquasaliente, Laura +8 more
core +1 more source
A Distinct Mechanism to Achieve Efficient Signal Recognition Particle (SRP)-SRP Receptor Interaction by the Chloroplast SRP Pathway [PDF]
, 2009 Cotranslational protein targeting by the signal recognition particle (SRP) requires the SRP RNA, which accelerates the interaction between the SRP and SRP receptor 200-fold.
Jaru-Ampornpan, Peera +2 more
core +2 more sources