Journal of Fungi, 2022 The yeast mitochondrial transport of GTP and GDP is mediated by Ggc1p, a member of the mitochondrial carrier family. The physiological role of Ggc1p in S.
Roberta Seccia +11 more
doaj +1 more source
The speed of GTP hydrolysis determines GTP cap size and controls microtubule stability
eLife, 2020 Microtubules are cytoskeletal polymers whose function depends on their property to switch between states of growth and shrinkage. Growing microtubules are thought to be stabilized by a GTP cap at their ends.
Johanna Roostalu +5 more
doaj +1 more source
PH Domain-Arf G Protein Interactions Localize the Arf-GEF Steppke for Cleavage Furrow Regulation in Drosophila. [PDF]
PLoS ONE, 2015 The recruitment of GDP/GTP exchange factors (GEFs) to specific subcellular sites dictates where they activate small G proteins for the regulation of various cellular processes.
Donghoon M Lee +4 more
doaj +1 more source
Turning Platelets Off and On: Role of RhoGAPs and RhoGEFs in Platelet Activity
Frontiers in Cardiovascular Medicine, 2022 Platelet cytoskeletal reorganisation is a critical component of platelet activation and thrombus formation in haemostasis. The Rho GTPases RhoA, Rac1 and Cdc42 are the primary drivers in the dynamic reorganisation process, leading to the development of ...
Shane P. Comer, Shane P. Comer
doaj +1 more source
GTP Binding Assays in Arabidopsis thaliana
Bio-Protocol, 2013 Signaling through G proteins constitutes an ancient mechanism that functions in the transduction of extracellular signals into intracellular responses. Activation of a proper receptor by a stimuli leads to an exchange of GDP for GTP, the activation of G ...
Ana Fox, Maria Mazzella
doaj +1 more source
GTP-binding-defective ARL4D alters mitochondrial morphology and membrane potential. [PDF]
PLoS ONE, 2012 ARL4D, ARL4A, and ARL4C are closely related members of the ADP-ribosylation factor/ARF-like protein (ARF/ARL) family of GTPases. All three ARL4 proteins contain nuclear localization signals (NLSs) at their C-termini and are primarily found at the plasma ...
Chun-Chun Li +7 more
doaj +1 more source
14-3-3 Proteins Interact with a Hybrid Prenyl-Phosphorylation Motif to Inhibit G Proteins [PDF]
, 2013 Signaling through G proteins normally involves conformational switching between GTP- and GDP-bound states. Several Rho GTPases are also regulated by RhoGDI binding and sequestering in the cytosol.
Afonine +58 more
core +3 more sources
LRRK2 kinase activity is dependent on LRRK2 GTP binding capacity but independent of LRRK2 GTP binding. [PDF]
PLoS ONE, 2011 Leucine rich repeat kinase 2 (LRRK2) is a Parkinson's disease (PD) gene that encodes a large multidomain protein including both a GTPase and a kinase domain.
Jean-Marc Taymans +7 more
doaj +1 more source
Essential Role of the G-Domain in Targeting of the Protein Import Receptor atToc159 to the Chloroplast Outer Membrane [PDF]
, 2002 Two homologous GTP-bindin proteins, atToc33 and atToc159, control access of cytosolic precursor proteins to the chloroplast, at Toc33 is a constitutive outer chloroplast membrane protein, whereas the precusor receptor atToc159 may be able to switch ...
Alvarez-Huerta, Mayte +7 more
core +3 more sources
Dual positive and negative regulation of GPCR signaling by GTP hydrolysis [PDF]
, 2009 G protein-coupled receptors (GPCRs) regulate a variety of intracellular pathways through their ability to promote the binding of GTP to heterotrimeric G proteins. Regulator of G protein signaling (RGS) proteins increase the intrinsic GTPase activity of G-
Berg, Hugo van den +8 more
core +1 more source