Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Concept

Pompe sodium-potassium

Publications associées (16)

V-ATPase/TORC1-mediated ATFS-1 translation directs mitochondrial UPR activation in C. elegans

Johan Auwerx, Kristina Schoonjans, Felix Naef, Xiaoxu Li, Yang Li, Hao Li, Jia Liu, Yan Liu, Wen Gao, Amélia Lalou, Nagammal Neelagandan

To adapt mitochondrial function to the ever-changing intra- and extracellular environment, multiple mitochondrial stress response (MSR) pathways, including the mitochondrial unfolded protein response (UPRmt), have evolved. However, how the mitochondrial st ...

Rockefeller University Press2022

The angiopoietin-Tie2 pathway regulates Purkinje cell dendritic morphogenesis in a cell-autonomous manner

Michele De Palma

Neuro-vascular communication is essential to synchronize central nervous system development. Here, we identify angiopoietin/Tie2 as a neuro-vascular signaling axis involved in regulating dendritic morphogenesis of Purkinje cells (PCs). We show that in the ...

CELL PRESS2021

Structural basis of drug recognition by the multidrug transporter ABCG2

Henning Paul-Julius Stahlberg, Dongchun Ni

ABCG2 is an ATP-binding cassette (ABC) transporter whose function affects the pharmacokinetics of drugs and contributes to multidrug resistance of cancer cells. While its interaction with the endogenous substrate estrone-3-sulfate (E1S) has been elucidated ...

Elsevier2021

Enhancing the Signaling of GPCRs via Orthosteric Ions

Horst Arthur Vogel, Shuguang Yuan

G protein-coupled receptors play essential roles in cellular processes such as neuronal signaling, vision, olfaction, tasting, and metabolism. As GPCRs are the most important drug targets, understanding their interactions with ligands is of utmost importan ...

AMER CHEMICAL SOC2020

Human T-Cell Lymphotropic Virus Type 1 Transactivator Tax Exploits the XPB Subunit of TFIIH during Viral Transcription

Armelle Inge Marie Eleonore Tollenaere

Human T-cell lymphotropic virus type 1 (HTLV-1) Tax oncoprotein is required for viral gene expression. Tax transactivates the viral promoter by recruiting specific transcription factors but also by interfering with general transcription factors involved in ...

American Society for Microbiology2020

Sodium Signaling and Astrocyte Energy Metabolism

Pierre Magistretti

The Na+ gradient across the plasma membrane is constantly exploited by astrocytes as a secondary energy source to regulate the intracellular and extracellular milieu, and discard waste products. One of the most prominent roles of astrocytes in the brain is ...

Wiley-Blackwell2016

A Balance between Inhibitor Binding and Substrate Processing Confers Influenza Drug Resistance

Jeffrey David Jensen, Claudia Bank

The therapeutic benefits of the neuraminidase (NA) inhibitor oseltamivir are dampened by the emergence of drug resistance mutations in influenza A virus (IAV). To investigate the mechanistic features that underlie resistance, we developed an approach to qu ...

Academic Press Ltd- Elsevier Science Ltd2016

alpha-Synuclein-induced dopaminergic neurodegeneration in a rat model of Parkinson's disease occurs independent of ATP13A2 (PARK9)

Bernard Schneider, Liliane Glauser, Elpida Tsika, Alessandra Musso, Guillaume Daniel

Mutations in the ATP13A2 (PARK9) gene cause early-onset, autosomal recessive Parkinson's disease (PD) and Kufor-Rakeb syndrome. ATP13A2 mRNA is spliced into three distinct isoforms encoding a P5-type ATPase involved in regulating heavy metal transport acro ...

Academic Press Inc Elsevier Science2015

Assessment of Pseudo-Bilayer Structures in the Heterogate Germanium Electron-Hole Bilayer Tunnel Field-Effect Transistor

Mihai Adrian Ionescu, Cem Alper, José Luis Padilla de la Torre

We investigate the effect of pseudo-bilayer configurations at low operating voltages (

American Institute of Physics2015

Learning-Induced Gene Expression in the Hippocampus Reveals a Role of Neuron-Astrocyte Metabolic Coupling in Long Term Memory

Pierre Magistretti, Igor Allaman, Sylvain Eric Lengacher, Gabriele Grenningloh, Monika Tadi

We examined the expression of genes related to brain energy metabolism and particularly those encoding glia (astrocyte)-specific functions in the dorsal hippocampus subsequent to learning. Context-dependent avoidance behavior was tested in mice using the s ...

Public Library of Science2015

Critical roles of isoleucine-364 and adjacent residues in a hydrophobic gate control of phospholipid transport by the mammalian P4-ATPase ATP8A2

Matteo Dal Peraro, Thomas Lemmin

P4-ATPases (flippases) translocate specific phospholipids such as phosphatidylserine from the exoplasmic leaflet of the cell membrane to the cytosolic leaflet, upholding an essential membrane asymmetry. The mechanism of flipping this giant substrate has re ...

National Academy of Sciences2014

Na-ion dynamics in Quasi-1D compound NaV2O4

Martin Mansson

We have used the pulsed muon source at ISIS to study high-temperature Na-ion dynamics in the quasi-one-dimensional (Q1D) metallic antiferromagnet NaV2O4. By performing systematic zero-field and longitudinal-field measurements as a function of temperature w ...

Iop Publishing Ltd2014

A Potassium-Selective Quartz Crystal Microbalance Sensor Based on Crown-Ether Functionalized Polymer Brushes

Harm-Anton Klok, Nicolas Bertrand Schüwer

Benzo-15-crown-5 functionalized polymer brushes prepared via surface-initiated atom transfer radical polymerization are used as the active layer in a potassium-selective quartz crystal microbalance sensor. The polymer brushes allow the selective detection ...

Wiley-Blackwell2010

Coordination Numbers of K+ and Na+ Ions Inside the Selectivity Filter of the KcsA Potassium Channel: Insights from First Principles Molecular Dynamics

Ursula Röthlisberger, Leonardo Guidoni, Denis Bucher

Quantum mechanics/molecular mechanics (QM/MM) Car-Parrinello simulations were performed to estimate the coordination numbers of K+ and Na+ ions in the selectivity filter of the KcsA channel, and in water. At the DFT/BLYP level, K+ ions were found to displa ...

Elsevier2010

Ensuring stability in models of atrial kinetics

Vincent Jacquemet

The membrane kinetics of human atrial myocytes as formulated by Courtemance, Ramierz and Nattel has been studied while focusing on its progression toward stationary solutions during long term repetitive stimulation. An algorithm is presented for finding th ...

2009

Tools to study molecules in high electric fields : ab-initio molecular dynamics studies of selectivity in a potassium channel and the catalytic efficiency of a DNA repair enzyme

Denis Bucher

This thesis describes the application of the quantum mechanics/molecular mechanics (QM/MM) Car-Parrinello methodology to two systems of high biological interest: (a) The potassium channel KcsA from Streptomyces lividans and (b) The DNA repair enzyme EndoIV ...

EPFL2006