Project description
New models to unravel the dynamics of sister chromatids
Sister chromatid cohesion refers to the process by which sister chromatids are paired and held together during certain phases of the cell cycle. Their organisation and contribution to cellular functions remained elusive owing to the lack of appropriate techniques able to distinguish their identical sequences. Funded by the Marie Skłodowska-Curie Actions programme, the MisterCHROM project will capitalise on the recent, successful technique that enabled for the first time a genome-wide analysis of sister chromatid interactions. In particular, it plans to develop theoretical models to better understand the complex sister-chromatid-sensitive contact patterns and the mechanisms underlying the formation and maintenance of sister chromatid cohesion.
Objective
The proposed project aims at modeling the structure and mechanisms of sister chromatids cohesion, and how it coordinates with intra-chromatid organization to shape replicated human chromosomes and support fundamental biological mechanisms. Indeed, sister chromatids organisation and its contribution to cellular functions remained elusive due to the lack of appropriate techniques able to distinguish the identical sequences of sister chromatids. The recent development of sister-chromatid-sensitive Hi-C (scsHi-C) technique by Gerlich's group at the host institution enables, for the first time, genome-wide analysis of sister chromatids interactions. These data now require theoretical models based on general physical principles to understand the complex scsHi-C contact patterns and the mechanisms underlying the formation and maintenance of sister chromatids cohesion. I will use coarse-grained polymer simulations and analytical calculations to: (i) unravel the structural and statistical features of sister chromatids organisation, e.g. how cohesive linkages distribute on the genome and the relative impact on sister chromatids conformation and alignment; (ii) understand the interplay of cohesion with dynamic intra-chromatid loops and TADs formation; (iii) predict outcomes of system perturbations on chromosome conformations and functional implications in processes such as gene expression, mitotic chromosome organisation, and DNA repair. Because the topology of sister chromatids is uncharted territory, whatever new knowledge is gained by the modeling approach proposed in this highly innovative study will constitute important contributions to long-standing open questions in the field, and will outline pathways towards new directions to pursue in future research. Given the relevance for various physiological processes, the outcomes of this project will be highly relevant for biologists from various fields, as well as biophysicist. The opportunity and the timing are thus unique.
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 mathematics pure mathematics topology
- natural sciences chemical sciences polymer sciences
- natural sciences biological sciences genetics chromosomes
- natural sciences biological sciences genetics genomes
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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-2020
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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.
1030 WIEN
Austria
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.