Objectif The motivations for studying the gaseous structures of peptides and proteins range from developing efficient methodologies for protein identification and quantification to fundamental understanding of folding processes and biomolecular architectures. Mass spectrometry allows analyzing biomolecular ions in a variety of different forms, for example, as a function of charge state, bound to their targets or in multimers following aggregation. Ion mobility-mass spectrometry is a revolutionary technique regarding the separation of complex mixtures and structural isomers and can now play an important role in the study of protein shapes and their complexes. In parallel, optical spectroscopy is also emerging as a key element in gas phase methods available for investigating biomolecular ions. In this proposal, we want to combine spectroscopic approaches with high resolution mass spectrometry and ion mobility to widen and deepen the scope of mass spectrometry in its various fields of applications including structural biology, protein identification and quantification. The general idea behind our approach is to simultaneously obtain “orthogonal” information on gas phase molecular conformation from ion mobility and optical spectroscopy, with in addition the possibility of using light to induce conformational changes or the formation of new species. A goal of this cross-disciplinary proposal is to study the structural reorganization of proteins occurring in relation to aggregation, radical formation and oxidation, focusing on misfolding and the earliest stages of tau protein assembly. Moreover, fundamental understanding of structure and reactivity of peptides and proteins will serve as a lever for the development of applications in analytical sciences using photon based dissociation. Major advances are expected from pioneering instrument development and from crossing boundaries between physics, chemistry and biology. Champ scientifique natural sciencesbiological sciencesbiochemistrybiomoleculesproteinsnatural scienceschemical sciencesanalytical chemistrymass spectrometrynatural sciencesbiological sciencesmolecular biologystructural biologynatural sciencesphysical sciencestheoretical physicsparticle physicsphotonsnatural sciencesphysical sciencesopticsspectroscopy Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Thème(s) ERC-AG-PE4 - ERC Advanced Grant - Physical and Analytical Chemical sciences Appel à propositions ERC-2012-ADG_20120216 Voir d’autres projets de cet appel Régime de financement ERC-AG - ERC Advanced Grant Institution d’accueil CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Contribution de l’UE € 2 489 100,00 Adresse RUE MICHEL ANGE 3 75794 Paris France Voir sur la carte Région Ile-de-France Ile-de-France Paris Type d’activité Research Organisations Contact administratif Pascaline Toutois (Dr.) Chercheur principal Philippe Dugourd (Dr.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée Bénéficiaires (1) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS France Contribution de l’UE € 2 489 100,00 Adresse RUE MICHEL ANGE 3 75794 Paris Voir sur la carte Région Ile-de-France Ile-de-France Paris Type d’activité Research Organisations Contact administratif Pascaline Toutois (Dr.) Chercheur principal Philippe Dugourd (Dr.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée
