Conformational changes in the GTPase modules of the signal reception particle and its receptor drive initiation of protein translocation [PDF]
, 2007 During cotranslational protein targeting, two guanosine triphosphatase (GTPase) in the signal recognition particle (SRP) and its receptor (SR) form a unique complex in which hydrolyses of both guanosine triphosphates (GTP) are activated in a shared ...
Chandrasekar, Sowmya +2 more
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Potassium acts as a GTPase-activating element on each nucleotide-binding domain of the essential Bacillus subtilis EngA. [PDF]
PLoS ONE, 2012 EngA proteins form a unique family of bacterial GTPases with two GTP-binding domains in tandem, namely GD1 and GD2, followed by a KH (K-homology) domain.
Anne-Emmanuelle Foucher +4 more
doaj +1 more source
Cells, 2022 Type 2 diabetes mellitus (T2DM) is a complex and heterogeneous disease that primarily results from impaired insulin secretion or insulin resistance (IR). G protein-coupled receptors (GPCRs) are proposed as therapeutic targets for T2DM.
Xiaohong Zhang +5 more
doaj +1 more source
Atypical Rho GTPases of the RhoBTB Subfamily: Roles in vesicle trafficking and tumorigenesis [PDF]
, 2016 RhoBTB proteins constitute a subfamily of atypical Rho GTPases represented in mammals by RhoBTB1, RhoBTB2, and RhoBTB3. Their characteristic feature is a carboxyl terminal extension that harbors two BTB domains capable of assembling cullin 3-dependent ...
Ji, Wei, Rivero, Francisco
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TBC1D8B, a GTPase-activating protein, is a novel apoptosis inducer
Biomedical Research, 2021 Overexpressed TBC1D8B, a GTPase-activating protein, significantly reduced cultured HCT116 human colon cancer cell number. We tested N-terminal TBC1D8B, which is identical to wild type TBC1D8B from amino acid positions 1 to 427 and possesses a modified sequence from position 428 to 435 (ECGGLFLL) because of the introduction of a premature stop codon at ...
Kazuya Okada +10 more
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A Point Mutation in p190A RhoGAP Affects Ciliogenesis and Leads to Glomerulocystic Kidney Defects. [PDF]
PLoS Genetics, 2016 Rho family GTPases act as molecular switches regulating actin cytoskeleton dynamics. Attenuation of their signaling capacity is provided by GTPase-activating proteins (GAPs), including p190A, that promote the intrinsic GTPase activity of Rho proteins. In
Katherine Stewart +16 more
doaj +1 more source
Regulation of intracellular cyclic GMP concentration by light and calcium in electropermeabilized rod photoreceptors. [PDF]
, 1994 This study examines the regulation of cGMP by illumination and by calcium during signal transduction in vertebrate retinal photoreceptor cells. We employed an electropermeabilized rod outer segment (EP-ROS) preparation which permits perfusion of low ...
Coccia, V J, Cote, Rick H.
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International Journal of Hepatology, 2012 IQ motif-containing GTPase-activating proteins IQGAP1 and IQGAP2 are highly homologous multidomain scaffolding proteins. Their major function consists of integration of Rho GTPase and Ca2+/calmodulin signals with cell adhesive and cytoskeletal ...
Valentina A. Schmidt
doaj +1 more source
Cool-associated Tyrosine-phosphorylated Protein 1 Is Required for the Anchorage-independent Growth of Cervical Carcinoma Cells by Binding Paxillin and Promoting AKT Activation. [PDF]
, 2017 Cool-associated tyrosine-phosphorylated protein 1 (Cat-1) is a signaling scaffold as well as an ADP-ribosylation factor-GTPase-activating protein. Although best known for its role in cell migration, we recently showed that the ability of Cat-1 to bind ...
Antonyak, Marc A. +3 more
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Identification of EPI64 as a GTPase-activating Protein Specific for Rab27A
Journal of Biological Chemistry, 2006 Small GTPase Rab27A plays a pivotal role in melanosome transport in melanocytes and in secretion by various secreting cells. Because the GTP- or GDP-locked mutant of Rab27A causes perinuclear aggregation of melanosomes, appropriate GTP-GDP cycling of Rab27A is essential for melanosome transport, and certain guanine nucleotide exchange factors and ...
Mitsunori Fukuda, Takashi Itoh
openaire +3 more sources