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The molecular mechanism of carotenogenesis: a light-induced light-protective response in Myxococcus xanthus

ReferenceP10242
Principal Investigator / Supervisor Professor David Hodgson
Co-Investigators /
Co-Supervisors
Institution University of Warwick
DepartmentBiological Sciences
Funding typeResearch
Value (£) 193,836
StatusCompleted
TypeResearch Grant
Start date 22/03/1999
End date 22/03/2002
Duration36 months

Abstract

Carotenogenesis is a light-induced, light-protective response in Myxococcus xanthus. Light induction is controlled by the carQRS operon. The objectives of the research are to prove physical interactions between CarQ, a sigma factor, and CarR, a membrane- bound anti-sigma factor and CarS, an anti-repressor, and the CarA complex, a repressor. We will use two approaches: the yeast two- hybrid system and genetics. We will use localised and site- directed mutagenesis to isolate mutant forms of CarR that cannot bind CarQ and visa versa. We will isolate suppresser mutations in the other gene that will allow binding again. We will obtain high level expression of native CarS for structural studies and probe the role of the C-terminus of CarS.

Summary

unavailable
Committee Closed Committee - Plant & Microbial Sciences (PMS)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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