Project description
Insight into the molecular mechanism of cell division
During mitosis, sister chromatids of each chromosome are equally divided over two newly formed daughter cells. To safeguard genomic stability and ensure error-free division, the APC/C protein complex promotes the progression to anaphase by targeting cell cycle regulators for degradation. The scope of the EU-funded UbiBranch project is to clarify the underlying molecular mechanism by which APC/C functions. Using a multi-disciplinary approach that combines molecular biology, proteomics and in vivo cell biology, scientists will address the control of APC/C on its different substrates. The work aims to unveil novel targets with potential therapeutic value.
Objective
The anaphase promoting complex/ cyclosome (APC/C) is an E3 ubiquitin ligase that controls the cell division cycle by targeting main cell cycle regulators for proteasomal degradation, thereby ensuring error-free cell division and safeguarding genome stability. Its foremost activity is during cell division, or mitosis, when two sets of sister chromatids are equally divided over two newly formed daughter cells.
Intriguingly, APC/C substrates that are degraded at the metaphase-to-anaphase transition have binding partners, which are not degraded. It remains a mystery how the APC/C controls degradation of the substrates and leaves the binding partners undisturbed. My objective is to clarify the molecular mechanism of substrate-binding partner disengagement, and determine the impact of disengagement on substrate degradation, to ensure controlled sister chromatid separation and genome integrity. First, I propose to identify the precise timing of disengagement during the process of ubiquitination, at the molecular level: this will give fundamental insight into disengagement control (Objective 1). Next, I will study ubiquitination at the proteomics level, by unraveling how Lysine-choice, and ubiquitin chain topology affect disengagement (Objective 2). Finally, I will combine conventional molecular biology methods with advanced microscopy techniques to investigate the importance of controlled substrate-binding partner disengagement for substrate degradation and genome stability (Objective 3).
I will employ a multi-disciplinary approach, combining molecular biology, proteomics, and in vivo cell biology approaches to resolve this fundamental biological question. The identified mechanism may provide insights into ternary complex formation of the APC/C and its substrates, which will enable translation to develop targeted-protein-degradation drugs.
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 proteomics
- natural sciences mathematics pure mathematics topology
- natural sciences biological sciences cell biology
- natural sciences biological sciences genetics genomes
- natural sciences biological sciences molecular biology
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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.1.3. - 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 - Marie Skłodowska-Curie Individual Fellowships (IF)
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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-2019
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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.
2333 ZA Leiden
Netherlands
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.