Results 11 to 20 of about 140,512 (290)

Turning Platelets Off and On: Role of RhoGAPs and RhoGEFs in Platelet Activity

open access: yesFrontiers 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

open access: yesBio-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]

open access: yesPLoS 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

Involvement of a small GTP binding protein in HIV-1 release

open access: yesRetrovirology, 2005
Background There is evidence suggesting that actin binding to HIV-1 encoded proteins, or even actin dynamics themselves, might play a key role in virus budding and/or release from the infected cell.
Gluschankof Pablo   +2 more
doaj   +1 more source

LRRK2 kinase activity is dependent on LRRK2 GTP binding capacity but independent of LRRK2 GTP binding. [PDF]

open access: yesPLoS 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

Nucleotide binding switches the information flow in ras GTPases.

open access: yesPLoS Computational Biology, 2011
The Ras superfamily comprises many guanine nucleotide-binding proteins (G proteins) that are essential to intracellular signal transduction. The guanine nucleotide-dependent intrinsic flexibility patterns of five G proteins were investigated in atomic ...
Francesco Raimondi   +3 more
doaj   +1 more source

Integrative dynamic structural biology unveils conformers essential for the oligomerization of a large GTPase

open access: yeseLife, 2023
Guanylate binding proteins (GBPs) are soluble dynamin-like proteins that undergo a conformational transition for GTP-controlled oligomerization and disrupt membranes of intracellular parasites to exert their function as part of the innate immune system ...
Thomas-O Peulen   +15 more
doaj   +1 more source

Studying GGDEF Domain in the Act: Minimize Conformational Frustration to Prevent Artefacts

open access: yesLife, 2021
GGDEF-containing proteins respond to different environmental cues to finely modulate cyclic diguanylate (c-di-GMP) levels in time and space, making the allosteric control a distinctive trait of the corresponding proteins.
Federico Mantoni   +10 more
doaj   +1 more source

This Is the End: Regulation of Rab7 Nucleotide Binding in Endolysosomal Trafficking and Autophagy

open access: yesFrontiers in Cell and Developmental Biology, 2018
Rab7 – or in yeast, Ypt7p – governs membrane trafficking in the late endocytic and autophagic pathways. Rab7 also regulates mitochondrion-lysosome contacts, the sites of mitochondrial fission.
Christopher Stroupe
doaj   +1 more source

Structural Insights into How Yrb2p Accelerates the Assembly of the Xpo1p Nuclear Export Complex

open access: yesCell Reports, 2014
Proteins and ribonucleoproteins containing a nuclear export signal (NES) assemble with the exportin Xpo1p (yeast CRM1) and Gsp1p-GTP (yeast Ran-GTP) in the nucleus and exit through the nuclear pore complex.
Masako Koyama   +2 more
doaj   +1 more source

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