L'iodoacétamide agit comme un réactif d'alkylation des résidus cystéine pour le séquençage des peptides. C'est un inhibiteur irréversible des enzymes présentant une cystéine au niveau de leur site actif. Il réagit beaucoup plus lentement avec les résidus histidine, mais cette activité entraîne l'inhibition de la ribonucléase.
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Cysteines (Cys) made acidic by the protein environment are generally sensitive to pro-oxidant molecules. Glutathionylation is a post-translational modification that can occur by spontaneous reaction of reduced glutathione (GSH) with oxidized Cys as sulfenic acids (-SOH). The reverse reaction (deglutathionylation)
Bypass of foregut secreted factors promoting insulin resistance is hypothesized to be one of the mechanisms by which resolution of type 2 diabetes (T2D) follows roux-en-y gastric bypass (GBP) surgery. To identify insulin resistance-associated proteins and metabolites which decrease more
Large oncosomes (LO) are atypically large (1-10 µm diameter) cancer-derived extracellular vesicles (EVs), originating from the shedding of membrane blebs and associated with advanced disease. We report that 25% of the proteins, identified by a quantitative proteomics analysis, are differentially
Diagnosis of muscular dystrophies is currently based on invasive methods requiring muscle biopsies or blood tests. The aim of the present study was to identify urinary biomarkers as a diagnostic tool for muscular dystrophies. Here, the urinary proteomes of Duchenne
Arthritis research & therapy, 17, 9-9 (2015-01-21)
Smoking is a well-established risk factor for rheumatoid arthritis (RA), and it has been proposed that smoking-induced citrullination renders autoantigens immunogenic. To investigate this mechanism, we examined human lung tissue from 40 subjects with defined smoking status, with or without
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