Publications related to Ubiquitin-conjugating enzyme

The CRL5-SPSB3 ubiquitin ligase targets nuclear cGAS for degradation

Andrea Ablasser, Baptiste Claude André Guey, Jonathan Jean-Pierre Ricci, Chong Liu, Pauline Ambre Melenec, Pengbiao Xu, Lingyun Li, Ying Liu

Cyclic GMP-AMP synthase (cGAS) senses aberrant DNA during infection, cancer and inflammatory disease, and initiates potent innate immune responses through the synthesis of 2 ' 3 '-cyclic GMP-AMP (cGAMP)1-7. The indiscriminate activity of cGAS towards DNA d ...

Nature Portfolio2024

A chemical biology approach to decipher chromatin ubiquitylation by RNF168

Pauline Franz

DNA damage signaling following DNA double-strand breaks (DSBs) involves numerous regulating proteins, which dynamically recognize ('read') and alter ('write' or 'erase') histone post-translational modifications (PTMs). Among these PTMs, the ubiquitin syste ...

EPFL2024

Ion Spectroscopy Reveals Structural Difference for Proteins Microhydrated by Retention and Condensation of Water

Oleg Boyarkine, Andrei Zviagin

Protein ubiquitin in its +7 charge state microhydrated by 5 and 10 water molecules has been interrogated in the gas phase by cold ion UV/IR spectroscopy. The complexes were formed either by condensing water onto the unfolded bare proteins in a temperature- ...

Amer Chemical Soc2024

Coordination of protein synthesis and degradation in mammalian cells

Shoujie Sun

The cellular protein levels are determined by protein synthesis and turnover rates. Two processes are involved in the proteome's turnover in proliferating cells: protein degradation and dilution. In theory, maintaining the cellular proteome concentration, ...

EPFL2023

Endoplasmic Reticulum and Lysosomal Quality Control of Four Nonsense Mutants of Iduronate 2-Sulfatase Linked to Hunter's Syndrome

Maurizio Molinari, Andrea Cavalli

Hunter's syndrome (mucopolysaccharidosis type II) is a rare X-linked lysosomal storage disorder caused by mutations in the iduronate-2-sulfatase (IDS) gene. Motivated by the case of a child affected by this syndrome, we compared the intracellular fate of w ...

2020

DNA repair protein Rad18 restricts LINE-1 mobility

Priscilla Turelli

Long interspersed element-1 (LINE-1, L1) is a mobile genetic element comprising about 17% of the human genome. L1 utilizes an endonuclease to insert L1 cDNA into the target genomic DNA, which induces double-strand DNA breaks in the human genome and activat ...

Nature Research2018

Ubiquitin-dependent folding of the Wnt signaling coreceptor LRP6

Françoise Gisou van der Goot Grunberg, Béatrice Kunz, Laurence Gouzi Abrami, Michal Feldman Elmalam, Elsa Anne Perrody

Many membrane proteins fold inefficiently and require the help of enzymes and chaperones. Here we reveal a novel folding assistance system that operates on membrane proteins from the cytosolic side of the endoplasmic reticulum (ER). We show that folding of ...

Elife Sciences Publications Ltd2016

Five Questions (with their Answers) on ER-Associated Degradation

Maurizio Molinari

Production of a functional proteome is a major burden for our cells. Native proteins operate inside and outside the cells to eventually warrant life and adaptation to metabolic and environmental changes, there is no doubt that production and inappropriate ...

Wiley-Blackwell2016

Cytoplasmic Ubiquitin-Specific Protease 19 (USP19) Modulates Aggregation of Polyglutamine-Expanded Ataxin-3 and Huntingtin through the HSP90 Chaperone

Françoise Gisou van der Goot Grunberg

Ubiquitin-specific protease 19 (USP19) is one of the deubiquitinating enzymes (DUBs) involved in regulating the ubiquitination status of substrate proteins. There are two major isoforms of USP19 with distinct C-termini; the USP19_a isoform has a transmembr ...

Public Library of Science2016

Folding and Endocytosis of Anthrax Toxin Receptors

Bacillus anthracis is the causative agent of the infectious disease anthrax. The disease is caused after taking up the spores by either inhalation, ingestion or through skin lesion. They then germinate inside the body and start secreting the tripartite ant ...

EPFL2016

RETRACTED: Autoadaptive ER-Associated Degradation Defines a Preemptive Unfolded Protein Response Pathway

Maurizio Molinari, Riccardo Bernasconi

Folding-defective proteins must be cleared efficiently from the endoplasmic reticulum (ER) to prevent perturbation of the folding environment and to maintain cellular proteostasis. Misfolded proteins engage dislocation machineries (dislocons) built around ...

Cell Press2013

dRYBP Contributes to the Negative Regulation of the Drosophila Imd Pathway

Bruno Lemaitre

The Drosophila humoral innate immune response fights infection by producing antimicrobial peptides (AMPs) through the microbe-specific activation of the Toll or the Imd signaling pathway. Upon systemic infection, the production of AMPs is both positively a ...

Public Library of Science2013

Nedd4 and Nedd4-2: Ubiquitin ligases at work in the neuron

Ubiquitination of proteins by the Nedd4 family of ubiquitin ligases is a significant mechanism in protein trafficking and degradation and provides for tight spatiotemporal regulation. Ubiquitination is gaining increasing recognition as a central mechanism ...

Pergamon-Elsevier Science Ltd2013

Dynamic Studies through Control of Relaxation in NMR Spectroscopy

Nicola Salvi

In numerous biological processes that constitute the base of living organisms, protein function is fundamentally related to internal dynamics occurring on μs-ms time scales that can give rise to chemical exchange contributions to relaxation. In a heteronuc ...

EPFL2013

Phosphorylation of α-synuclein is crucial in compensating for proteasomal dysfunction

Hilal Lashuel

α-Synuclein can be degraded by both the ubiquitin-proteasomal system and the chaperone-lysosomal system. However, the switching mechanism between the two pathways is not clearly understood. In our study, we investigated the mutual association between the b ...

Academic Press Inc Elsevier Science2012

Fragmentation methods on the balance: unambiguous top–down mass spectrometric characterization of oxaliplatin–ubiquitin binding sites

Paul Joseph Dyson, Yury Tsybin, Christian Hartinger

The interaction between oxaliplatin and the model protein ubiquitin (Ub) was investigated in a top-down approach by means of high-resolution electrospray ionization mass spectrometry (ESI-MS) using diverse tandem mass spectrometric (MS/MS) techniques, incl ...

Springer-Verlag2012

Cytotoxic gold compounds: synthesis, biological characterization and investigation of their inhibition properties of the zinc finger protein PARP-1

Michael Graetzel, Shaik Mohammed Zakeeruddin, Rosario Scopelliti, Angela Casini, Fabio Edafe, Maria Serratrice

The new gold(III) complexes: [Au{2-(2'-pyridyl) imidazolate}Cl-2] and [Au{2,6-bis(2'-benzimidazolate) pyridine}(OCOCH3)] and the mono-and binuclear gold(I) complexes: Au{2-(2'-pyridyl) imidazole} (PPh3), [Au(2-phenylimidazolate)(DAPTA)] (DAPTA = 3,7 ...

Royal Society of Chemistry2012

Parkin promotes the ubiquitination and degradation of the mitochondrial fusion factor mitofusin 1

Liliane Glauser, Darren Moore, Sarah Catherine Sonnay, Klodjan Stafa

Mutations in the parkin gene cause early-onset, autosomal recessive Parkinson's disease. Parkin functions as an E3 ubiquitin ligase to mediate the covalent attachment of ubiquitin monomers or linked chains to protein substrates. Substrate ubiquitination ca ...

2011

Metabolization of [Ru(η6-C6H5CF3)(pta)Cl2]: a cytotoxic RAPTA-type complex with a strongly electron withdrawing arene ligand

Paul Joseph Dyson, Anna Katherine Renfrew, Christian Hartinger

The anticancer ruthenium-arene compd. [Ru(η6-C6H5CF3)(pta)Cl2] (pta = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane), termed RAPTA-CF3, with the electron-withdrawing α,α,α-trifluorotoluene ligand, is one of the most cytotoxic RAPTA compds. known. To ration ...

Springer-Verlag2010

Alterations in lysosomal and proteasomal markers in Parkinson's disease: relationship to alpha-synuclein inclusions

Patrick Aebischer

We explored the relationship between ubiquitin proteasome system (UPS) and lysosomal markers and the formation of alpha-synuclein (alpha-syn) inclusions in nigral neurons in Parkinson disease (PD). Lysosome Associated Membrane Protein 1(LAMP1), Cathepsin D ...

2009