Results 1 to 10 of about 223,798 (375)

Molecular modeling study for interaction between Bacillus subtilis Obg and Nucleotides. [PDF]

open access: yesPLoS ONE, 2010
The bacterial Obg proteins (Spo0B-associated GTP-binding protein) belong to the subfamily of P-loop GTPase proteins that contain two equally and highly conserved domains, a C-terminal GTP binding domain and an N-terminal glycine-rich domain which is ...
Yuno Lee   +6 more
doaj   +4 more sources

Nucleotide binding switches the information flow in ras GTPases. [PDF]

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   +6 more sources

Tissue‐specific expression differences in Ras‐related GTP‐binding proteins in male rats [PDF]

open access: yesPhysiological Reports
The protein kinase Mechanistic Target of Rapamycin (mTOR) in Complex 1 (mTORC1) is regulated in part by the Ras‐related GTP‐binding proteins (Rag GTPases).
Gregory N. Kincheloe   +3 more
doaj   +2 more sources

Septin6 and Septin7 GTP binding proteins regulate AP-3- and ESCRT-dependent multivesicular body biogenesis. [PDF]

open access: yesPLoS ONE, 2014
Septins (SEPTs) form a family of GTP-binding proteins implicated in cytoskeleton and membrane organization, cell division and host/pathogen interactions. The precise function of many family members remains elusive.
Sofia Traikov   +6 more
doaj   +2 more sources

A mant-GDP Dissociation Assay to Compare the Guanine Nucleotide Binding Preference of Small GTPases

open access: yesBio-Protocol, 2021
Small GTPases are cellular switches that are switched on when bound to GTP and switched off when bound to GDP. Different small GTPase proteins or those with mutations may bind to GTP or GDP with different relative affinities.
玉萍 tanyuping, Qingxiang Sun
doaj   +1 more source

The speed of GTP hydrolysis determines GTP cap size and controls microtubule stability

open access: yeseLife, 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

Interaction of GTP‐binding proteins with calmodulin [PDF]

open access: yesFEBS Letters, 1986
Two GTP‐binding proteins (Gi and Go), which were the substrates for islet‐activating protein, pertussis toxin, were purified from bovine cerebral cortical membranes. Both Gi and Go completely inhibited calmodulin‐stimulated cyclic nucleotide phosphodiesterase activity. The same concentrations of these proteins, however, had no appreciable effect on the
Mamoru Sano   +3 more
openaire   +3 more sources

Citrate Regulates the Saccharomyces cerevisiae Mitochondrial GDP/GTP Carrier (Ggc1p) by Triggering Unidirectional Transport of GTP

open access: yesJournal 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

PH Domain-Arf G Protein Interactions Localize the Arf-GEF Steppke for Cleavage Furrow Regulation in Drosophila. [PDF]

open access: yesPLoS 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

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

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