Project description
Insight into the cancer protein network
Tripartite motif (TRIM) family proteins are known for their post-translational modification function. They are evolutionarily conserved, and more than 70 TRIM proteins are known in humans with roles in various biological processes ranging from regulation of immune cells to proliferation and DNA repair. The EU-funded TRIM MAGE complexes project is working on TRIM28, which is encountered in cancer cells. Researchers are particularly interested in delineating TRIM28’s interaction with and subsequent activation by melanoma antigen (MAGE) proteins. They will undertake biophysical and structural characterisation of this interaction, which is expected to unveil novel information on the protein network in cancer.
Objective
TRIM family proteins are RING-type E3 ubiquitin ligases with important roles in immune responses, autophagy and cellular signalling. They are characterised by the presence of an N-terminal tripartite motif that harbours the catalytic RING domain and a C-terminal variable substrate-binding domain. TRIM28/KAP1 is a unique family member that is better known for its role in transcriptional repression, which is mediated via its C-terminal PHD-Bromo domains. Nevertheless, ubiquitination activity has been described for TRIM28, especially in cancer cells, in conjunction with Melanoma Antigen (MAGE) proteins. MAGE proteins are aberrantly expressed in many cancer types and have been proposed to regulate and activate TRIM28 E3 activity to mediate proteasomal degradation of prominent targets, including p53 and AMPK. Cellular and molecular details of TRIM28 MAGE-dependent ligase activity remain unknown. Furthermore, it is unclear, how the interplay between the two functions of TRIM28 is regulated and how the protein E3 ligase activity is supressed when recruited as part of transcriptional silencing complexes.
I want to use a multi-disciplinary approach and combine unbiased proteomic studies with in vitro biochemical, biophysical and structural experiments to study MAGE-dependent regulation of TRIM28 E3 ligase activity. I aim to identify cellular signals such as posttranslational modifications and interaction partners that can both modulate MAGE-TRIM28 complexes and regulate the interplay between the transcriptional and the E3 ligase activity. By combining these findings with structural and mechanistic studies, I will uncover how MAGE proteins modulate substrate recognition, E2 recruitment and ligase activity of TRIM28, and create a model of MAGE-TRIM28 function.
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
- medical and health sciences clinical medicine oncology
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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.
NW1 1AT London
United Kingdom
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