Results 81 to 90 of about 261,498 (196)

Dissecting the effects of GTPase and kinase domain mutations on LRRK2 endosomal localization and activity

open access: yesCell Reports, 2023
Summary: Parkinson’s disease-causing leucine-rich repeat kinase 2 (LRRK2) mutations lead to varying degrees of Rab GTPase hyperphosphorylation. Puzzlingly, LRRK2 GTPase-inactivating mutations—which do not affect intrinsic kinase activity—lead to higher ...
Capria Rinaldi   +8 more
doaj  

Overexpression of SYNGAP1 suppresses the proliferation of rectal adenocarcinoma via Wnt/β-Catenin signaling pathway

open access: yesDiscover Oncology
Rectal adenocarcinoma (READ) is a common malignant tumor of the digestive tract. Growing studies have confirmed Ras GTPase-activating proteins are involved in the progression of several tumors.
Yun Xiao   +7 more
doaj   +1 more source

A homologue of the Parkinson’s disease-associated protein LRRK2 undergoes a monomer-dimer transition during GTP turnover

open access: yesNature Communications, 2017
The Parkinson’s disease‐associated LRRK2 protein is a multidomain Roco protein with GTPase activity. Here the authors use a multidisciplinary approach to characterize the GTPase mechanism of a homologous bacterial Roco protein and give mechanistic ...
Egon Deyaert   +16 more
doaj   +1 more source

Modules in the photoreceptor RGS9-1•Gβ5L GTPase-accelerating protein complex control effector coupling, GTPase acceleration, protein folding, and stability [PDF]

open access: yes, 2000
RGS (regulators of G protein signaling proteins regulate G protein signaling by accelerating GTP hydrolysis, but little is known about regulation of GTPase-accelerating protein (GAP) activities or roles of domains and subunits outside the catalytic cores.
Chen, Ching-Kang   +8 more
core   +1 more source

The beta subunit of the signal recognition particle receptor is a transmembrane GTPase that anchors the alpha subunit, a peripheral membrane GTPase, to the endoplasmic reticulum membrane. [PDF]

open access: yes, 1995
The signal recognition particle receptor (SR) is required for the cotranslational targeting of both secretory and membrane proteins to the endoplasmic reticulum (ER) membrane.
Lauffer, L   +3 more
core  

Dissection of GTPase activating proteins reveals functional asymmetry in the COPI coat of budding yeast. [PDF]

open access: yes, 2019
The Arf GTPase controls formation of the COPI vesicle coat. Recent structural models of COPI revealed the positioning of two Arf1 molecules in contrasting molecular environments.
Arakel, E.   +5 more
core   +1 more source

Kalirin12 interacts with dynamin

open access: yesBMC Neuroscience, 2009
Background Guanine nucleotide exchange factors (GEFs) and their target Rho GTPases regulate cytoskeletal changes and membrane trafficking. Dynamin, a large force-generating GTPase, plays an essential role in membrane tubulation and fission in cells ...
Mains Richard E   +3 more
doaj   +1 more source

Functional specialization of the yeast Rho1 GTP exchange factors [PDF]

open access: yes, 2012
Rho GTPases are regulated in complex spatiotemporal patterns that may be dependent, in part at least, on the multiplicity of their GTP exchange factors (GEFs).
Cundell, M.   +6 more
core  

Structural and mechanistic insights into regulation of the retromer coat by TBC1d5

open access: yesNature Communications, 2016
Retromer is recruited to endosomes by the small GTPase Rab7 and sorting nexin 3. Here, the authors report the interaction between a GTPase-activating protein TBC1d5 and Rab7, examine the biochemical details of the interaction with retromer, and discuss ...
Da Jia   +13 more
doaj   +1 more source

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