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Structure and function of sterol demethylases from Mycobacterium tuberculosis and Streptomyces coelicolor

ReferenceC15314
Principal Investigator / Supervisor Professor Andrew Munro
Co-Investigators /
Co-Supervisors
Dr Iain Hunter
Institution University of Leicester
DepartmentBiochemistry
Funding typeResearch
Value (£) 147,392
StatusCompleted
TypeResearch Grant
Start date 01/10/2001
End date 30/09/2004
Duration36 months

Abstract

The sterol demethylase P450s from Mycobacterium tuberculosis and Streptomyces coelicolor are soluble, unlike their membrane-bound eukaryotic counterparts; the lanosterol demethylases. Fungal demethylases are targets for azole anti-fungals, but there is no structural rationale for the drugs' potency (e.g. fluxconazole), since no atomic structures have been solved. We have expressed/purified/crystallised the M. tuberculosis P450, and cloned the Streptomyces P450. We will express redox partners for the M. tuberculosis P450, determine kinetic and spectroscopic characteristics, and solve the P450 structure. We will express/purify the Streptomyces P450 and analyse function in a knockout strain. The outcome will be the first structural data for a sterol demethylase, as well as elucidation of functional and kinetic properties.

Summary

unavailable
Committee Closed Committee - Biochemistry & Cell Biology (BCB)
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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