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Is cyclic GMP a second messenger of nitric oxide stress in Paracoccus denitrificans?

ReferencePRS12156
Principal Investigator / Supervisor Dr S Spiro
Co-Investigators /
Co-Supervisors
Institution University of East Anglia
DepartmentBiological Sciences
Funding typeResearch
Value (£) 162,803
StatusCompleted
TypeResearch Grant
Start date 09/01/2000
End date 09/01/2003
Duration36 months

Abstract

The NNR protein of P. denitrificans activates transcription in response to NO, and our data indicate that the active species of NNR is a complex with cGMP. This study will test the hypothesis that cGMP acts as a second messenger of NO exposure in P. denitrificans, and will explore the cGMP biosynthetic pathway. Cyclic GMP will be assayed in extracts of cells grown under different conditions, and the relationship between cGMP synthesis and NO production examined. Effects of exogenous cGMP and its analogues on NMR mediated gene expression will be studied. Genetic and biochemical approaches will be used to identify the genes and enzymes involved in cGMP synthesis, to determine there is no NO- activated pathway for cGMP synthesis.

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 Prokaryotic Responses to Environmental Stress (PRS) [1999]
Funding SchemeX – not Funded via a specific Funding Scheme
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