Objective
To investigate the ways in which pathogenic mycobacteria are able to regulate their growth and survive within an infected host by:
* Analysing the expression of ribosomal RNA (rRNA) genes when mycobacteria are grown under a variety of conditions, including in host tissue.
* Studying the role of ribosomal protein S10 in the transcription of mycobacterial rRNA operons.
* Identifying additional transcription factors involved in expressing genes involved in ribosome synthesis.
Expected Outcome
This study will identify the strategies used by pathogenic mycobacteria to regulate ribosome synthesis, and hence to regulate growth rates. By identifying specific components of the transcriptional machinery of M. tuberculosis, we expect to identify potential targets for the development of novel anti tuberculosis drugs.
The expression of rRNA genes will be investigated by identifying the promoters involved, and studying their relative levels of expression under different conditions. Comparisons will be made between pathogenic (M. tuberculosis) and non-pathogenic mycobacteria; between laboratory and clinical isolates of M. tuberculosis; and between M. tuberculosis grown under different laboratory conditions, including growth in infected host tissues.
The role of ribosomal protein S10 will be investigated by preparing purified recombinant protein and studying its interaction with RNA sequences and with other proteins of M. tuberculosis.
Additional transcription factors will be identified by establishing in vitro transcription assays using purified mycobacterial RNA polymerase. Transcriptional activity will be monitored and factors which affect transcriptional efficiency identified and characterised.
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 pneumology tuberculosis
- natural sciences biological sciences genetics RNA
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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.
Coordinator
NW7 1AA London
United Kingdom
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