Publications by Jonathan Jean-Pierre Ricci

Differential role of C-terminal truncations on alpha-synuclein pathology and Lewy body formation

Graham Knott, Romain Hamelin, Anne-Laure Mahul Mellier, Nadine Aït Bouziad, Jonathan Jean-Pierre Ricci, Yllza Jasiqi, Mary-Claude Croisier-Coeytaux, Anass Chiki, Melek Firat Altay, Somanath Jagannath

Alpha-synuclein (aSyn) post-translational modifications (PTM), especially phosphorylation at serine 129 and C-terminal truncations, are highly enriched in Lewy bodies (LB), Lewy neurites, and other pathological aggregates in Parkinson's disease and synucle ...

Springer Science and Business Media LLC2025

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

Revisiting the specificity and ability of phospho-S129 antibodies to capture alpha-synuclein biochemical and pathological diversity

Hilal Lashuel, Nicolas Jean Philippe Guex, Christian Iseli, Anne-Laure Mahul Mellier, Jonathan Jean-Pierre Ricci, Yllza Jasiqi, Anass Chiki, Sean Michael Deguire, Ritwik Burai, Melek Firat Altay

Antibodies against phosphorylated alpha-synuclein (aSyn) at 5129 have emerged as the primary tools to investigate, monitor, and quantify aSyn pathology in the brain and peripheral tissues of patients with Parkinson's disease and other neurodegenerative dis ...

NATURE PORTFOLIO2022

Clathrin-associated AP-1 control stermination of STING signalling

Andrea Ablasser, Jonathan Jean-Pierre Ricci, Chong Liu, Pengbiao Xu, Ying Liu, Sophie Marie Elisabeth Rivara

Stimulator of interferon genes (STING) functions downstream of cyclic GMP-AMP synthase in DNA sensing or as a direct receptor for bacterial cyclic dinucleotides and small molecules to activate immunity during infection, cancer and immunotherapy(1-10). Prec ...

NATURE PORTFOLIO2022

A New Chemoenzymatic Semisynthetic Approach Provides Insight into the Role of Phosphorylation beyond Exon1 of Huntingtin and Reveals N-Terminal Fragment Length-Dependent Distinct Mechanisms of Aggregation

Hilal Lashuel, Jonathan Jean-Pierre Ricci, Andreas Reif, Rajasekhar Kolla, Iman Rostami, Gopinath Pushparathinam

Huntington’s disease is a neurodegenerative dis- order caused by the expansion of a polyglutamine repeat (>36Q) in the N-terminal domain of the huntingtin protein (Htt), which renders the protein or fragments thereof more prone to aggregate and form inclus ...

2021

Site-Specific Phosphorylation of Huntingtin Exon 1 Recombinant Proteins Enabled by the Discovery of Novel Kinases

Hilal Lashuel, Luciano Andres Abriata, Jonathan Jean-Pierre Ricci, Anass Chiki, Andreas Reif, Ramanath Narayana Hegde, Driss Boudeffa

Post-translational modifications (PTMs) within the first 17 amino acids (Nt17) of exon 1 of the Huntingtin protein (Httex1) play important roles in modulating its cellular properties and functions in health and disease. In particular, phosphorylation of th ...

2020

Generation of Native, Untagged Huntingtin Exon1 Monomer and Fibrils Using a SUMO Fusion Strategy

Hilal Lashuel, Jonathan Jean-Pierre Ricci, Anass Chiki, Andreas Reif

Huntington’s Disease (HD) is an inherited fatal neurodegenerative disease caused by a CAG expansion (36) in the first exon of the HD gene, resulting in the expression of the Huntingtin protein (Htt) or N-terminal fragments thereof with an expanded polygl ...

2018