Objectif Autophagy is a bulk cellular degradation pathway in which double-membrane vesicles engulfe large and long-lived cytoplasmic structures and target them to lysosomal compartments. Employing an integrated structural biology approach using single-particle cryo-EM and X-ray crystallography, this proposal aims to elucidate the structural details by which the autophagosomal recognition machinery identifies and assembles its cargo for targeting to autophagosomes. It has recently become apparent that selective autophagy requires specific receptors that recognize and recruit defined cargo into molecular assemblies and target them for autophagosomal degradation. Dysfunction of this process is implicated in a number of important human pathologies, such as cancer, neurodegeneration and myopathies. A precise understanding of the molecular mechanisms underlying selective autophagy requires the structural characterization of the molecular complexes involved in this process. First, the ultrastructural architecture of homo-oligomeric receptor assemblies will be established. Second, the structural organization of cargo-receptor complexes will be defined for a hetero-oligomeric, mechanosensitive model complex involved in muscle homeostasis using a combination of cryo-EM and X-ray crystallography. Third, oligomeric changes of cargo-receptor assemblies will be related to cellular function. In its aim to establish a multi-resolution view on the molecular principles of selective autophagy, this proposal has the potential to fundamentally advance our current understanding of this important degradation pathway. Champ scientifique natural sciencesbiological sciencesneurobiologynatural sciencesearth and related environmental sciencesgeologymineralogycrystallographymedical and health sciencesbasic medicinepathologymedical and health sciencesbasic medicinephysiologyhomeostasisnatural sciencesbiological sciencesmolecular biologystructural biology Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Thème(s) FP7-PEOPLE-2012-IEF - Marie-Curie Action: "Intra-European fellowships for career development" Appel à propositions FP7-PEOPLE-2012-IEF Voir d’autres projets de cet appel Régime de financement MC-IEF - Intra-European Fellowships (IEF) Coordinateur EUROPEAN MOLECULAR BIOLOGY LABORATORY Contribution de l’UE € 161 968,80 Adresse Meyerhofstrasse 1 69117 Heidelberg Allemagne Voir sur la carte Région Baden-Württemberg Karlsruhe Heidelberg, Stadtkreis Type d’activité Research Organisations Contact administratif Jillian Rowe (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée
