Results 21 to 30 of about 1,011,564 (289)

Roles of G proteins and their GTPase-activating proteins in platelets. [PDF]

open access: yesBiosci Rep
AbstractPlatelets are small anucleate blood cells supporting vascular function. They circulate in a quiescent state monitoring the vasculature for injuries. Platelets adhere to injury sites and can be rapidly activated to secrete granules and to form platelet/platelet aggregates.
O'Donoghue L, Smolenski A.
europepmc   +3 more sources

ADP-Ribosylation Factor Family of Small GTP-Binding Proteins: Their Membrane Recruitment, Activation, Crosstalk and Functions

open access: yesFrontiers in Cell and Developmental Biology, 2022
Members of the ADP-ribosylation factor (ARF) family of guanine-nucleotide binding proteins play critical roles in various cellular processes, especially in regulating the secretory, and endocytic pathways.
Tiantian Li   +3 more
doaj   +1 more source

Modulation of small GTPase activity by NME proteins [PDF]

open access: yesLaboratory Investigation, 2018
NME proteins are reported to influence signal transduction activity of small GTPases from the Ras superfamily by diverse mechanisms in addition to their generic NDP kinase activity, which replenishes the cytoplasmic pool of GTP. Comprehensive evidence shows that NME proteins modulate the activity of Ras GTPases, in particular members of the Rho family,
Vedrana Filić   +3 more
openaire   +3 more sources

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

The role of GTPase-activating protein ARHGAP26 in human cancers [PDF]

open access: yesMolecular and Cellular Biochemistry, 2021
AbstractRho GTPases are molecular switches that play an important role in regulating the behavior of a variety of tumor cells. RhoA GTPase-activating protein 26 (ARHGAP26) is a GTPase-activating protein and inhibits the activity of Rho GTPases by promoting the hydrolytic ability of Rho GTPases.
Lingye Zhang   +6 more
openaire   +2 more sources

Barley ROP-Interactive Partner-a organizes into RAC1- and MICROTUBULE-ASSOCIATED ROP-GTPASE ACTIVATING PROTEIN 1-dependent membrane domains

open access: yesBMC Plant Biology, 2020
Background Small ROP (also called RAC) GTPases are key factors in polar cell development and in interaction with the environment. ROP-Interactive Partner (RIP) proteins are predicted scaffold or ROP-effector proteins, which function downstream of ...
Caroline Hoefle   +2 more
doaj   +1 more source

RAP1GAP (RAP1 GTPase activating protein) [PDF]

open access: yesAtlas of Genetics and Cytogenetics in Oncology and Haematology, 2011
Review on RAP1GAP (RAP1 GTPase activating protein), with data on DNA, on the protein encoded, and where the gene is implicated.
Chen, Z, Shao, X
openaire   +3 more sources

C9orf72 Toxic Species Affect ArfGAP-1 Function

open access: yesCells, 2023
Compelling evidence indicates that defects in nucleocytoplasmic transport contribute to the pathogenesis of amyotrophic lateral sclerosis (ALS). In particular, hexanucleotide (G4C2) repeat expansions in C9orf72, the most common cause of genetic ALS, have
Simona Rossi   +9 more
doaj   +1 more source

A Novel GTPase-activating Protein for R-Ras [PDF]

open access: yesJournal of Biological Chemistry, 1995
R-Ras, belonging to the Ras small GTP-binding protein superfamily, has been implicated in regulation of various cell functions such as gene expression, cell proliferation, and apoptotic cell death. In the present study, we purified an R-Ras-interacting protein with molecular mass of about 98 kDa (p98) from bovine brain cytosol by glutathione S ...
Masato Nakafuku   +4 more
openaire   +3 more sources

Niemann-Pick Type C Proteins Are Required for Sterol Transport and Appressorium-Mediated Plant Penetration of Colletotrichum orbiculare

open access: yesmBio, 2022
Many biotrophic and hemibiotrophic fungal pathogens use appressoria to directly penetrate the host plant surface. In the cucumber anthracnose fungus Colletotrichum orbiculare, differentiation of appressoria requires a proper G1/S cell cycle progression ...
Sayo Kodama   +3 more
doaj   +1 more source

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