Project description
Role of diadenosine polyphosphate alarmones in proteome post-translational modifications
The complexity of information from genome to proteome is significantly increased due to post-translational modifications (PTM), which are covalent modifications of polypeptides after protein synthesis. The EU-funded AMP-Alarm project will elucidate the cellular role of diadenosine polyphosphates (ApnAs), formed in response to stress and called alarmones, and their involvement in the target protein modification by adenosine monophosphate (AMPylation), a PTM process. The objective is to identify and characterise new protagonists of AMPylation and study their interactions with ApnAs, using proteome-wide analysis in living cells. The project work will include the investigation of a protein already identified with ApnA-based probes as a 5'-3' RNA ligase, the first one found in human cells, which is implicated in cancer and neurodegeneration.
Objective
"It is puzzling that the human genome has only slightly more genes than the fruit fly and only half the number of cauliflower. Obviously, the sheer number of genes alone cannot determine the complexity of human development and the sophisticated signalling systems that maintain homeostasis. In fact, the complexity of information from genome to proteome is greatly increased. Drivers for the complexity of the proteome are posttranslational modifications (PTMs), i.e. covalent modifications of polypeptides after translation.
The aim of this project is to shine light on a scientific mystery known for decades. We will elucidate the cellular roles and functions of diadenosine polyphosphates (ApnAs), which are formed in response to stress and are therefore called ""alarmones"", and their interactions with the PTM processes ""AMPylation"", i.e. the covalent modification of the target protein by adenosine monophosphate. Although both topics are known for more than 60 years, their molecular mechanism and functions are poorly understood.
Based on our preliminary results, which unambiguously show the interplay of ApnAs and AMPylation for the first time, we will search for, identify and characterize new protagonists of AMPylation and clarify their interactions with ApnAs. Therefore, new chemical tools will be developed and applied in the proteome-wide studies in living cells.
We will also investigate the molecular function of a protein that we have already identified with ApnA-based probes. We have discovered that this protein is a ""5'-3' RNA ligase"", the first one found in human cells! The available data indicates the involvement of this RNA ligase in cancer and neurodegeneration, and we will therefore elucidate the molecular mechanisms and functions of this protein in detail.
Overall, this project will bring significant new and previously unexplored advances and will provide a guideline for future translational research in the fight against diseases."
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 neurobiology
- natural sciences biological sciences biochemistry biomolecules proteins proteomics
- agricultural sciences agriculture, forestry, and fisheries agriculture horticulture fruit growing
- natural sciences biological sciences genetics RNA
- natural sciences biological sciences genetics genomes
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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.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
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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.
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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.
ERC-ADG - Advanced Grant
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Call for proposal
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(opens in new window) ERC-2020-ADG
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78464 Konstanz
Germany
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