Objective
The discovery of RNA interference in plant and Caenorhabditis elegans, and all related RNA silencing processes, was one of the major progresses in modern biology and has added a higher degree of complexity to our understanding of the regulation processes in cell. The most abundant and studied eukaryotic regulatory RNAs are miRNAs. Although the mode of action of miRNAs is well known, the principles governing their expression and activity are only beginning to emerge. Approximately 50% of mammalian miRNA loci are found in close proximity to other miRNAs. These clustered miRNAs are transcribed from a single polycistronic transcription unit leading to a primary transcript which is successively matured by a nuclear (Drosha) and a cytoplasmic (Dicer) RNase III-type enzyme to yield small RNA duplexes.
Expression of many miRNAs is spatially and temporally highly controlled. More attributed to transcriptional control, this phenomenon is also now related to differential processing of precursors, or degradation of mature miRNAs.
Recently, viruses infecting mammalian cells (mostly of the herpes family) have been shown to express their own miRNAs. These miRNAs can act both in cis, to ensure accurate expression of viral genomes, and in trans, to modify the expression of host transcripts. They regulate fundamental processes in the cell such as immunity, apoptosis, or key steps for optimal infection environment establishment. The project will address how viral miRNAs are processed and how this processing is regulated. We intend to approach the question in a structural way, using the large miRNA cluster found in Kaposi’s Sarcoma-Associated Herpesvirus (KSHV) as a model to uncover mechanisms explaining the sequential steps leading from a long RNA molecule containing numerous hairpins to short RNA duplexes. Interestingly, although all 12 KSHV miRNAs derive from a single pri-miRNA in latently cells, dramatic differences in their levels of expression were observed.
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 microbiology virology
- natural sciences biological sciences genetics genomes viral genomes
- natural sciences biological sciences genetics RNA
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
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.
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.
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.
FP7-PEOPLE-2010-RG
See other projects for this call
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.
Coordinator
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.