Publications de Sylvia Ho | EPFL Graph Search

Dynamics of CLIMP-63 S-acylation control ER morphology

Kathryn Hess Bellwald, Béatrice Kunz, Graham Knott, Françoise Gisou van der Goot Grunberg, Laurence Gouzi Abrami, Vassily Hatzimanikatis, Patrick Alain Sandoz, Robin Alexander Denhardt-Eriksson, Sylvia Ho, Luciano Andres Abriata, Catherine Maclachlan, Gard Spreemann

A key player in the formation of endoplasmic reticulum sheets is CLIMP-63, but mechanistic details remained elusive. Here authors combined cellular experiments and mathematical modelling to show that S-acylation of CLIMP-63 regulates its function by mediat ...

Nature Portfolio2023

CERT1 mutations perturb human development by disrupting sphingolipid homeostasis

Paolo De Los Rios, Bruno Lemaitre, Evelyne Ruchti, Sylvia Ho, Anthony Vocat, Samuel Rommelaere, Greta Limoni, Stefano Zamuner, Giovanni D'Angelo, Laura Capolupo, Charlotte Julie Caroline Gehin, Huixin Guo

Neural differentiation, synaptic transmission, and action potential propagation depend on membrane sphingolipids, whose metabolism is tightly regulated. Mutations in the ceramide transporter CERT (CERT1), which is involved in sphingolipid biosynthesis, are ...

American Society for Clinical Investigation2023

Sphingolipids control dermal fibroblast heterogeneity

Olivier Burri, Sylvia Ho, Romain Guiet, Galina Glousker, Giovanni D'Angelo, Laura Capolupo, Gioele La Manno, Alex Russell Lederer, Irina Khven

Human cells produce thousands of lipids that change during cell differentiation and can vary across individual cells of the same type. However, we are only starting to characterize the function of these cell-to-cell differences in lipid composition. Here, ...

American Association for the Advancement of Science2022

Palmitoylated acyl protein thioesterase APT2 deforms membranes to extract substrate acyl chains

Françoise Gisou van der Goot Grunberg, Laurence Gouzi Abrami, Patrick Alain Sandoz, Florence Pojer, Matteo Dal Peraro, Sylvia Ho, Martina Audagnotto, Giulia Fonti, Maria Josefina Marcaida Lopez, Muhammad Umair Anwar, Francisco De Magalhães Sarmento R De Mesquita

Acyl protein thioesterase APT2 interacts with membranes via its charged beta-tongue, becomes palmitoylated by ZDHHC3/7 and deforms the bilayer to extract substrate acyl chains. APT2 deacylation leads to its membrane release and degradation. ...

NATURE RESEARCH2021

Damage of eukaryotic cells by the pore-forming toxin sticholysin II: Consequences of the potassium efflux

Françoise Gisou van der Goot Grunberg, Sylvia Ho

Pore-forming toxins (PFTs) form holes in membranes causing one of the most catastrophic damages to a target cell. Target organisms have evolved a regulated response against PFTs damage including cell membrane repair. This ability of cells strongly depends ...

Elsevier Science Bv2017

New Insight into the Catalytic and Inhibition Mechanism of the Human Acyl Protein Thioesterase

Françoise Gisou van der Goot Grunberg, Patrick Alain Sandoz, Matteo Dal Peraro, Sylvia Ho, Martina Audagnotto, Nicole Andenmatten

Cell Press2016

Pore-forming toxins induce multiple cellular responses promoting survival

Mirko Bischofberger, Françoise Gisou van der Goot Grunberg, Rodrigo Manuel Gonzalez, Sylvia Ho

Pore-forming toxins (PFTs) are secreted proteins that contribute to the virulence of a great variety of bacterial pathogens. They inflict one of the more disastrous damages a target cell can be exposed to: disruption of plasma membrane integrity. Since thi ...

Wiley-Blackwell2011

Dual Chaperone Role of the C-Terminal Propeptide in Folding and Oligomerization of the Pore-Forming Toxin Aerolysin

Matteo Thomas Degiacomi, Françoise Gisou van der Goot Grunberg, Mircea Ioan Iacovache, Matteo Dal Peraro, Sylvia Ho

Throughout evolution, one of the most ancient forms of aggression between cells or organisms has been the production of proteins or peptides affecting the permeability of the target cell membrane. This class of virulence factors includes the largest family ...

2011