Objective
Secondary membrane transporters are found across the biological kingdom. The structural dynamics of their actions are elusive, as our understanding relies on few X-ray structures. Comparisons of the available structures show that large re-arrangements take place between two domains during transport, with what is generally described as a “rocking-bundle model”. However, dynamic motion between the transport domains remains largely inaccessible to most experimental analysis methods. Here we propose to use a novel mass spectrometric approach that allows the desolvation of intact membrane proteins directly from detergent or lipid environments in combination with ion mobility mass spectrometry to monitor conformational changes in secondary transporters. This study will initially focus on the glutamate transporter GltPh for which structures, inhibitor, mutagenesis and cysteine cross-linking studies are available. We will then apply the same approach to the less-well understood transporters harboring the NhaA-fold. The goal will be to elucidate the conformational dynamics of NhaA, NapA, and ASBT proteins during transport and monitor the effects of substrates, ions, lipids and oligomerization. In summary, this project aims to establish a novel mass spectrometry-based methodology to bridge the gap between structure and function of secondary active transporters.
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 biological sciences biochemistry biomolecules lipids
- natural sciences chemical sciences analytical chemistry mass spectrometry
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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-2013-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
OX1 2JD Oxford
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.