Results 11 to 20 of about 1,798,469 (249)

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

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 screening-compatible live cell fluorescence resonance energy transfer-based assay for modulation of Rho GTPase activity

open access: yesSTAR Protocols, 2022
Summary: Rho family GTPases are central regulators of cytoskeletal dynamics controlled by guanine nucleotide exchange factors (RhoGEFs) and GTPase-activating proteins (RhoGAPs).
Paul Markus Müller, Oliver Rocks
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

Upregulation of DAB2IP Inhibits Ras Activity and Tumorigenesis in Human Pancreatic Cancer Cells

open access: yesTechnology in Cancer Research & Treatment, 2020
KRAS mutation-induced Ras activation plays an important role in the pathogenesis of pancreatic cancer, but the role of wild-type Ras and Ras GTPase-activating proteins remains unclear. The present study was designed to determine the expression spectra of
Yifan Duan MD, PhD   +8 more
doaj   +1 more source

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

Rho GTPase Regulators and Effectors in Autism Spectrum Disorders: Animal Models and Insights for Therapeutics

open access: yesCells, 2020
The Rho family GTPases are small G proteins that act as molecular switches shuttling between active and inactive forms. Rho GTPases are regulated by two classes of regulatory proteins, guanine nucleotide exchange factors (GEFs) and GTPase-activating ...
Daji Guo, Xiaoman Yang, Lei Shi
doaj   +1 more source

Specific Rab GTPase-activating proteins define the Shiga toxin and epidermal growth factor uptake pathways [PDF]

open access: yes, 2007
Rab family guanosine triphosphatases (GTPases) together with their regulators define specific pathways of membrane traffic within eukaryotic cells. In this study, we have investigated which Rab GTPase-activating proteins (GAPs) can interfere with the ...
Evelyn Fuchs   +18 more
core   +1 more source

Ubiquitination-Dependent Regulation of Small GTPases in Membrane Trafficking: From Cell Biology to Human Diseases

open access: yesFrontiers in Cell and Developmental Biology, 2021
Membrane trafficking is critical for cellular homeostasis, which is mainly carried out by small GTPases, a class of proteins functioning in vesicle budding, transport, tethering and fusion processes. The accurate and organized membrane trafficking relies
Zehui Lei   +5 more
doaj   +1 more source

Novel role of Ras-GTPase Activating Protein SH3 Domain-Binding Protein G3BP in adhesion and migration of 32D myeloid progenitor cells [PDF]

open access: yes, 2012
Rho GTPases are involved in homing and mobilization of hematopoietic stem and progenitor cells due to their impact on cytoskeleton remodeling. We have previously shown that inhibition of Rho, Rac and Cdc42 clearly impairs adhesion of normal and leukemic ...
Schwarz, Kerstin   +8 more
core   +1 more source

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