Objective
The main goal of this proposal is to understand the molecular mechanism by which proteins equilibrate under the effect of a constant stretching force and the effect of molecular chaperones in the mechanical folding of an individual protein. We will use the newly developed single molecule force-clamp spectroscopy technique to elucidate the conformational dynamics of a single refolding protein during its individual folding trajectory from highly extended states. A key feature of mechanical folding experiments is that the different conformations visited by the folding polypeptide can be unambiguously identified according to their distinct mechanical stability. The final folding transition is identified by the full recovery of the protein mechanical stability. These single molecule experiments have highlighted the conformational richness encountered along the folding pathway of an individual protein. A missing keystone in the accepted folding picture lies in understanding the molecular mechanisms by which some proteins fail to recover their natively folded conformation, triggering the aggregation process. Using a single molecule approach, here we aim at identifying the individual step along the folding pathway that prevents culmination of successful folding. In this vein, while much has been discovered about mechanical folding in the last years, the question of how chaperones will help the mechanical folding process remained elusive. Within a multidisciplinary approach, here we propose a series of innovative experiments to directly probe the effect of force on the function of an individual folding polypeptide in the absence or presence of molecular chaperones, of common occurrence in nature.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences biochemistry biomolecules proteins protein folding
- natural sciences physical sciences optics spectroscopy
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP7-PEOPLE-2012-IEF
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
WC2R 2LS London
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.