Objective
Research objectives and content
The CRM1 protein is an export receptor for leucine-rich nuclear export signals (NESs). It was shown to mediate rapid transport of proteins and RNAs from the nucleus to the cytoplasm. Association of CRM1 with NESs is only stable in the presence of the nuclear form of the GTPase Ran, suggesting that hydrolysis of the Ran-bound GTP causes the export complexes to fall apart in the cytoplasm. Our aim is to test this hypothesis, and to obtain a detailed understanding of the mechanism of CRM1/NES binding to and release. For this purpose I will use in vitro assays with recombinant components to mimick nuclear or cytoplasmic binding conditions. NES-containing (ribonuclear) proteins are exported via the nuclear pore complex, however, nothing is known about the exact mechanism of this process. By manipulating the NES-bound state of CRM1 I will study export-specific interactions with NPC-components. I also propose to study the energy requirements for CRM1-mediated export making use of an in vitro export system.
Training content (objective, benefit and expected impact)
For these studies I will profit from the long expertise of the host laboratory in the field of nucleocytoplasmic transport. The use of an in vitro nuclear export system that was developed in Dr.Mattaj's lab will be particularly valuable.
Links with industry / industrial relevance (22)
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 genetics RNA
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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.
Call for proposal
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Funding Scheme
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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
HEIDELBERG
Germany
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