Publications associées à GTPase

The role of LRRK2 in lung adenocarcinoma

Lung cancer is the leading cause of cancer-related deaths worldwide and the most common lung cancer subtype is lung adenocarcinoma (LUAD). Frequently mutated genes involve activating mutations in KRAS and loss of function mutations in TP53. LUADs primarily ...

EPFL2024

Structural basis of the activation of the CC chemokine receptor 5 by a chemokine agonist

Henning Paul-Julius Stahlberg, Nicolas Calo, Polina Isaikina

The human CC chemokine receptor 5 (CCR5) is a G protein-coupled receptor (GPCR) that plays a major role in inflammation and is involved in cancer, HIV, and COVID-19. Despite its importance as a drug target, the molecular activation mechanism of CCR5, i.e., ...

AMER ASSOC ADVANCEMENT SCIENCE2021

Biallelic mutations in calcium release activated channel regulator 2A (CRACR2A) cause a primary immunodeficiency disorder

Dylan Lawless, Beibei Wu

CRAC channel regulator 2 A (CRACR2A) is a large Rab GTPase that is expressed abundantly in T cells and acts as a signal transmitter between T cell receptor stimulation and activation of the Ca2+-NFAT and JNK-AP1 pathways. CRACR2A has been linked to human d ...

eLIFE SCIENCES PUBL LTD2021

Dopaminergic neurodegeneration induced by Parkinson's disease-linked G2019S LRRK2 is dependent on kinase and GTPase activity

Elpida Tsika, Darren Moore, Xi Chen

Mutations in leucine-rich repeat kinase 2 (LRRK2) are the most common cause of late-onset, autosomal-dominant familial Parkinson's disease (PD). LRRK2 functions as both a kinase and GTPase, and PD-linked mutations are known to influence both enzymatic acti ...

National Academy of Sciences2020

Organelle-specific targeting of polymersomes into the cell nucleus

Zekiye Pelin Güven

Organelle-specific nanocarriers (NCs) are highly sought after for delivering therapeutic agents into the cell nucleus. This necessitates nucleocytoplasmic transport (NCT) to bypass nuclear pore complexes (NPCs). However, little is known as to how comparabl ...

National Academy of Sciences2020

Extent of N-terminus exposure of monomeric alpha-synuclein determines its aggregation propensity

Hilal Lashuel, Anass Chiki

As an intrinsically disordered protein, monomeric alpha-synuclein (aSyn) occupies a large conformational space. Certain conformations lead to aggregation prone and non-aggregation prone intermediates, but identifying these within the dynamic ensemble of mo ...

Nature Research2020

AMP-activated protein kinase : strategies for activation and downstream target identification

Serge Thanh Son Ducommun

AMP-activated protein kinase (AMPK) is an evolutionally conserved key sensor of cellular energy status. Under conditions of cellular energy stress, AMPK is activated and will switch off anabolic processes that consume ATP, while activating catabolic proces ...

EPFL2016

Modulation of AMPK's activity via genetic tools and food-derived compounds as a novel approach to Parkinson's disease treatment

Wojciech Janusz Bobela

Aging is considered as a major risk factor for Parkinsonâ s disease (PD) and can be defined as a gradual decline in the ability of biological systems to efficiently renew structural and functional components, which may lead to perturbations in energetic h ...

EPFL2016

A Parkinson's disease gene regulatory network identifies the signaling protein RGS2 as a modulator of LRRK2 activity and neuronal toxicity

Patrick Aebischer, Bernard Schneider, Julien Dusonchet, Liliane Glauser, Darren Moore, Klodjan Stafa

Mutations in LRRK2 are one of the primary genetic causes of Parkinson's disease (PD). LRRK2 contains a kinase and a GTPase domain, and familial PD mutations affect both enzymatic activities. However, the signaling mechanisms regulating LRRK2 and the pathog ...

Oxford University Press2014

Functional interaction of Parkinsons disease-associated LRRK2 with members of the dynamin GTPase superfamily

Liliane Glauser, Elpida Tsika, Klodjan Stafa, Darren Moore, Alessandra Musso, Amy Jones

Mutations in LRRK2 cause autosomal dominant Parkinsons disease (PD). LRRK2 encodes a multi-domain protein containing GTPase and kinase domains, and putative proteinprotein interaction domains. Familial PD mutations alter the GTPase and kinase activity of L ...

Oxford University Press2014

Anillin Regulates Cell-Cell Junction Integrity by Organizing Junctional Accumulation of Rho-GTP and Actomyosin

Ricard Delgado Gonzalo

Anillin is a scaffolding protein that organizes and stabilizes actomyosin contractile rings and was previously thought to function primarily in cytokinesis [1-10]. Using Xenopus laevis embryos as a model system to examine Anillin's role in the intact verte ...

Cell Press2014

GTPase Activity and Neuronal Toxicity of Parkinson's Disease-Associated LRRK2 Is Regulated by ArfGAP1

Liliane Glauser, Klodjan Stafa, Darren Moore, Alzbeta Trancikova

Mutations in the leucine-rich repeat kinase 2 (LRRK2) gene are the most common cause of autosomal dominant familial Parkinson's disease (PD) and also contribute to idiopathic PD. LRRK2 encodes a large multi-domain protein with GTPase and kinase activity. I ...

Public Library of Science2012

A Role for Septins in the Interaction between the Listeria monocytogenes Invasion Protein InlB and the Met Receptor

Sandor Kasas, Charles Roduit

Septins are conserved GTPases that form filaments and are required for cell division. During interphase, septin filaments associate with cellular membrane and cytoskeleton networks, yet the functional significance of these associations have, to our knowled ...

Elsevier2011

Pathway Analysis of Glioblastoma Tissue after Preoperative Treatment with the EGFR Tyrosine Kinase Inhibitor Gefitinib-A Phase II Trial

Mauro Delorenzi

Amplification of the epidermal growth factor receptor (EGFR) gene is one of the most common oncogenic alterations in glioblastoma (45%) making it a prime target for therapy. However, small molecule inhibitors of the EGFR tyrosine kinase showed disappointin ...

2011

GTPase Activity Plays a Key Role in the Pathobiology of LRRK2

Darren Moore

Mutations in the leucine-rich repeat kinase 2 (LRRK2) gene are associated with late-onset, autosomal-dominant, familial Parkinson's disease (PD) and also contribute to sporadic disease. The LRRK2 gene encodes a large protein with multiple domains, includin ...

Public Library of Science2010

The dynamics of cardiolipin synthesis post-mitochondrial fusion

Richardus Houtkooper

Alteration in mitochondrial fusion may regulate mitochondrial metabolism. Since the phospholipid cardiolipin (CL) is required for function of the mitochondrial respiratory chain, we examined the dynamics of CL synthesis in growing Hela cells immediately af ...

2010

An overview of the fission yeast septation initiation network (SIN)

Viesturs Simanis, Andrea Krapp

The fission yeast septation initiation network, or SIN, is a signal transduction network that is required for septum formation in Schizosaccharomyces pombe. Its activity is tightly regulated through the cell cycle, to ensure proper co-ordination of mitosis ...

2008

Plants, MEN and SIN

Viesturs Simanis

In fission yeast, the onset of septation is signalled through the septum initiation network (SIN) signaling pathway. Similarly, in budding yeast the onset of budding is signalled through the mitotic exit network (MEN) pathway. We previously characterized i ...

2008

Structural determinants underlying the temperature-sensitive nature of a Galpha mutant in asymmetric cell division of Caenorhabditis elegans

Pierre Gönczy

Heterotrimeric G-proteins are integral to a conserved regulatory module that influences metazoan asymmetric cell division (ACD). In the Caenorhabditis elegans zygote, GOA-1 (Galpha(o)) and GPA-16 (Galpha(i)) are involved in generating forces that pull on a ...

2008

Cortical localization of the Galpha protein GPA-16 requires RIC-8 function during C. elegans asymmetric cell division

Pierre Gönczy

Understanding of the mechanisms governing spindle positioning during asymmetric division remains incomplete. During unequal division of one-cell stage C. elegans embryos, the Galpha proteins GOA-1 and GPA-16 act in a partially redundant manner to generate ...

2005