Objective
The aim of this research proposal is to investigate in detail the location and mobility of RNA degradation machinery in E. coli. RNA decay has been widely studied in bacteria but continues to reveal subtle secrets [1,2]. Recent research demonstrates that the degradosome complex forms cytoskeletal-like structures linked with the inner cell membrane [3]. Preliminary results from Cecilia Arraiano’s laboratory (host laboratory) have shown that RNase R colocalises with the bacterial nucleoid, whereas RNase II is exclusively a cytoplasmic protein. Consequently, the main bacterial nucleases may have different cellular locations. After developing a system for in vivo localisation of RNases I will investigate their dynamics, likely factors that influence their mobility, and consequences of differential location. Because environmental stresses alter levels of RNases, I will check whether rearrangement of the degradation machinery is connected to changes in its cell location, and/or is linked to the formation of degradation foci analogous to eukaryotic processing/degradation P-bodies. This year it was reported in Science that abortive E. coli polymerase transcripts are produced in vivo during transcription initiation [4]. I will therefore investigate whether RNase R location in the nucleoid is functionally connected to degradation of these newly discovered small RNAs.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- natural sciences biological sciences microbiology bacteriology
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences genetics RNA
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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-2009-IEF
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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
2784-505 OEIRAS
Portugal
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