Publications de Annalisa Ansaloni

Mutant Exon1 Huntingtin Aggregation is Regulated by T3 Phosphorylation-Induced Structural Changes and Crosstalk between T3 Phosphorylation and Acetylation at K6

Giovanni Dietler, Hilal Lashuel, Anass Chiki, Annalisa Ansaloni, Francesco Simone Ruggeri, Ritwik Burai, Sophie Vieweg, Sean Michael Deguire, Urszula Beata Cendrowska

Herein, we used protein semisynthesis to investigate, for the first time, the effect of lysine acetylation and phosphorylation, as well as the crosstalk between these modifications on the structure and aggregation of mutant huntingtin exon1 (Httex1). Our r ...

Wiley-Blackwell2017

An Intein-based Strategy for the Production of Tag-free Huntingtin Exon 1 Proteins Enables New Insights into the Polyglutamine Dependence of Httex1 Aggregation and Fibril Formation

Hilal Lashuel, Annalisa Ansaloni, Sophie Vieweg, John Blaine Warner IV

The first exon of the Huntingtin protein (Httex1) is one of the most actively studied Htt fragments because its overexpression in R6/2 transgenic mice has been shown to recapitulate several key features of Huntington disease. However, the majority of bioph ...

Amer Soc Biochemistry Molecular Biology Inc2016

Detection of huntingtin exon 1 phosphorylation by Phos-Tag SDS-PAGE: Predominant phosphorylation on threonine 3 and regulation by IKKβ

Hilal Lashuel, Annalisa Ansaloni, Lara Petricca

2015

Elucidating the role of N-terminal phosphorylation in regulating the structure and the aggregation propensities of Huntingtin exon 1 using a semisynthetic strategy

Annalisa Ansaloni

EPFL2014

One-Pot Semisynthesis of Exon 1 of the Huntingtin Protein: New Tools for Elucidating the Role of Posttranslational Modifications in the Pathogenesis of Huntington's Disease

Giovanni Dietler, Hilal Lashuel, Jae Sun Jeong, Annalisa Ansaloni, Francesco Simone Ruggeri

The natural enzymes involved in regulating many of the posttranslational modifications (PTMs) within the first 17 residues (Nt17) of Huntingtin exon1 (Httex1) remain unknown. A semisynthetic strategy that allows the site-specific introduction of PTMs withi ...

Wiley-Blackwell2014

Discovery and Structure Activity Relationship of Small Molecule Inhibitors of Toxic β-Amyloid-42 Fibril Formation

Andrea Pfeifer, Hilal Lashuel, Mohammad Asad Jan Qureshi, Andreas Muhs, Annalisa Ansaloni, Paolo Paganetti, Magdalena Zweckstetter

Increasing evidence implicates Aβ peptides self-assembly and fibril formation as crucial events in the pathogenesis of Alzheimer disease. Thus, inhibiting Aβ aggregation, among others, has emerged as a potential therapeutic intervention for this disorder. ...

Amer Soc Biochemistry Molecular Biology Inc2012