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Flavohaemoglobin: a bifunctional NO-Detoxifying enzyme for facultatively aerobic bacteria

ReferenceP18939
Principal Investigator / Supervisor Professor Robert K Poole
Co-Investigators /
Co-Supervisors
Institution University of Sheffield
DepartmentMolecular Biology and Biotechnology
Funding typeResearch
Value (£) 221,180
StatusCompleted
TypeResearch Grant
Start date 14/04/2003
End date 13/07/2006
Duration39 months

Abstract

The flavohaemoglobin Hmp of Escherichia coli and Salmonella provides protection from NO and nitrosative stress (for example in macrophages) by converting NO to nitrate (aerobically) or nitrous oxide (anoxically). The objectives of this work are to: (a) evaluate the role(s) of Hmp in physiologically relevant oxygen-limited and anoxic survival conditions, (b) dissect the roles of the haem and flavin domains of Hmp in ligand binding and catalysis, (c) seek new regulators of hmp transcription, and (d) identify additional mechanisms for NO and nitrosative stress tolerance in the absence of Hmp.

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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