Project description
Pioneering sensor technology will put single-molecule protein interactions in focus
Proteins are the cells’ workhorses, responsible for nearly every task a cell executes, from maintaining cell shape to manufacturing cellular constituents and mediating inter- and intracellular signalling and cellular responses to a changing environment. They are made up of hundreds or thousands of amino acids in chains that take on complex 3D conformations. Their activity is dependent on interactions with other molecules, in turn dependent on dynamic changes in the protein itself. Often proteins are present in large numbers to rapidly respond to their changing environment, and they work together to execute complex tasks. Capturing the dynamics of these intermolecular interactions on the single-molecule level is key to understanding the roles of proteins in disease and health. The EU-funded MultiSense project is developing a nanoplasmonic sensor to do just that, overcoming the current limitations of single-molecule sensors regarding this monumental task. The sensor technology will be compatible with any research-grade microscope, supporting a new age of discovery related to intermolecular interactions and protein function.
Objective
I will develop a single-molecule sensor that reveals multi-protein dynamics at micromolar concentrations to provide new understanding of how protein machinery functions in real-time. Proteins and their interactions are the cornerstone of biological processes. The dynamic cooperation between multiple species is key to most processes including chaperone-mediated protein folding, signal transduction, and metabolism. The dynamics of these processes is fast and adaptive due to a tailored combination of low affinity and high concentration. Current single-molecule sensors cannot capture these dynamics because (1) they only work in dilute solutions which perturbs the dynamics or (2) they only resolve a single species. Capturing dynamics of protein machinery at physiological conditions therefore remains one of the grand challenges in the field.
MultiSense will develop a nanoplasmonic sensor to provide the opportunity to reveal multi-molecular protein dynamics at micromolar concentrations. This will be achieved by (a) developing technology to resolve and interpret multi-protein interactions and cooperation using Förster Resonance Energy Transfer in the confined near-field of a plasmonic particle, and (b) using this technology to provide the first real-time picture of chaperone-mediated protein folding at physiological conditions. This will contribute to unraveling why chaperones fail to induce proper folding or prevent protein aggregation in the context of diseases.
The proposed method can be implemented on any research-grade microscope and can be generalized to any protein by applying the proper particle functionalization. This will inspire other researchers to study dynamic cooperation in protein machinery to unravel complex molecular mechanisms. In the long term the small size and biocompatibility of metal nanoparticles will enable studies of protein interactions at the single-molecule level in their natural environment, a living cell.
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
- natural sciences physical sciences optics microscopy
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering sensors
- engineering and technology nanotechnology nano-materials
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
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Topic(s)
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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.
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.
ERC-COG - Consolidator Grant
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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.
(opens in new window) ERC-2019-COG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
5612 AE Eindhoven
Netherlands
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