Objective
We will seek in this project to reveal structural and dynamic features of the C-terminal domain (CTD) of the Hepatitis B virus (HBV) core protein which encapsidates the viral genome. Each year, over 750,000 deaths are due to serious liver diseases caused by chronic HBV infection. Hepatitis B is, despite the availability of a vaccine, still a major health problem. The HBV virus particle is composed of an outer lipid-protein envelope and a core protein of 20 kDa that self-assembles into icosahedral nucleocapsids. The nucleocapsid encloses the pregenomic RNA (pgRNA) that is then reverse-transcribed into DNA by the viral polymerase (Pol). During pgRNA encapsidation, the CTD is thought to interact with the RNA. Despite the essential role played by the CTD in the regulation of the viral life cycle through various conformational states and phosphorylation patterns, it escapes today to classical structural biology approaches due to its dynamic nature. We will use solid-state NMR to bring new insights into the precise conformation and localization of the CTD along various steps of the viral life cycle. Sample preparation protocols of the core protein have recently been established by the applicant in the host laboratory using bacterial expression systems. The first NMR spectra of the nucleocapsid look highly promising. Further experiments will be recorded to assign the resonances and identify the CTD signals. Different phosphorylation states and binding partners, as the pgRNA, will be explored. Finally, paramagnetic tags will be used to obtain information about the positioning of the CTD.
Our work shall contribute to expand the present molecular description of the HBV life cycle to include the role of the CTD. Our results will help to understand, and ultimately to target, its central role in HBV infection.
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.
- medical and health sciences basic medicine pharmacology and pharmacy drug discovery
- medical and health sciences health sciences infectious diseases DNA viruses hepatitis B
- medical and health sciences basic medicine pharmacology and pharmacy pharmaceutical drugs vaccines
- medical and health sciences clinical medicine hepatology
- medical and health sciences basic medicine pharmacology and pharmacy pharmaceutical drugs antivirals
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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.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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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.
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.
MSCA-IF-EF-ST - Standard EF
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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) H2020-MSCA-IF-2016
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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.
75794 PARIS
France
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.