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ER-REMODEL

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Endoplasmic reticulum remodelling via ER-phagy pathways

The endoplasmic reticulum (ER) is the most extensive endomembrane system of the cell that undergoes continuous remodelling and adaptation to fulfil required functions in synthesis and transport of cellular components. A major driv... ver más

31/12/2027

GUF

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

JOHANN WOLFGANG GOETHEUNIVERSITAET FRANKFURT... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2023-01-01

ERC-2021-ADG: ERC ADVANCED GRANTS Scope:Objectives

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Cerrada hace 3 años

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Duración del proyecto: 59 meses Fecha Inicio: 2023-01-01
Fecha Fin: 2027-12-31

Líder del proyecto

JOHANN WOLFGANG GOETHEUNIVERSITAET FRANKFURT... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto The endoplasmic reticulum (ER) is the most extensive endomembrane system of the cell that undergoes continuous remodelling and adaptation to fulfil required functions in synthesis and transport of cellular components. A major driver of ER remodelling is ER-phagy, a selective autophagy pathway that targets excess or damaged portions of ER for degradation. By linking the ER membrane to the autophagic machinery, ER-phagy receptors play central roles in this process. However, beyond the identities of ER-phage receptors, we have little understanding of the mechanisms underlying ER-phagy and the dynamics of ER remodelling. This proposal aims to decipher the mechanisms by which ER-phagy receptors, especially those containing reticulon-homology domains (RHD), drive the dynamic process of ER remodelling in a cell-type specific fashion. We will determine how ER-phagy is regulated by site-specific receptor ubiquitination and by the formation of ER-phagy receptor clusters, particularly how ubiquitination regulates cluster size, dynamics, localization, identity and composition. We will combine structural, computational and functional approaches to determine, at the highest possible resolution, how ubiquitination and clustering of ER-phagy receptors controls the multistep process of ER-phagy and membrane remodelling. We aim for a comprehensive understanding of the distinct mechanisms involved in ER remodelling in different cell types and in response to various stress conditions. This mechanistic knowledge is essential to explain how changes in ER-phagy and ER remodelling impact on the pathophysiology of human diseases from bacterial infections to neurological disorders. These novel and ground-breaking discoveries will elucidate an ER-phagy receptor code controlling ER remodelling in health and disease. Moreover, ER-REMODEL will provide a conceptual framework for future studies into the dynamic regulation of other cellular organelles via ubiquitin-driven selective autophagy.

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