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Single molecule characterisation of biological nanopores in action

Project description

Biophysical insight into nanopores

Biological nanopores are the channels formed through transmembrane proteins on cells. Apart from their inherent biological function, they have been exploited in a variety of applications for the detection of biomolecules as well as for DNA sequencing. The EU-funded NOTE project proposes to use optical tweezers (OT) as a method to study how biological nanopores interact with their substrates during translocation. OT employ focused laser light to hold and move molecules in high resolution, offering a significant study tool for biological systems. NOTE will generate fundamental knowledge necessary for the successful exploitation of biological nanopores in biosensor technologies for personalised medicine.

Objective

Biological nanopores are nanometre-scale holes in membranes created by transmembrane proteins. In nature, nanopores come from pore-forming toxins or exist as transporters in bacteria. To date, they have been successfully used for an impressive variety of applications ranging from DNA sequencing through to the measurement of function-related motions of enzymes. Planned developments using nanopores include their integration into biosensors for the detection of analytes from blood. However, to reach their potential, miniaturisation and parallelisation of electrophysiology setups and an in-depth understanding of how nanopores exert forces on their substrates during trapping and translocation are required. There are currently no experimental techniques which provide access to this information. Single molecule studies using the optical tweezers (OT) have, over the past decade, become the gold standard in high resolution measurements of forces in biological systems, including observations of sub-nanometre enzyme kinetics, protein folding and protein degradation machinery in action. I propose the development of low-cost, microfluidic-based tools for the study of biological nanopores using OT. The technologies arising from this work will provide an unprecedented insight into the function of biological nanopores and will enable studies of any other transmembrane protein system, many of which are also of great medical importance. The findings will also lay the groundwork for peptide-sequencing and biosensor technologies for personalised medicine. The combination of my skills in single molecule biophysics and Prof. Maglia’s expertise at the forefront of biological nanopore technologies is ideal for the successful completion of the research objectives. Through the planned interdisciplinary work and high-quality training, I will increase both my research- and transferable skill sets enabling me to reach my goal of establishing a leading independent research group within the EU.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

(opens in new window) H2020-MSCA-IF-2020

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Coordinator

RIJKSUNIVERSITEIT GRONINGEN
Net EU contribution
€ 175 572,48
Address
Broerstraat 5
9712CP Groningen
Netherlands
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 175 572,48