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X-ray structural studies of the bacterial alpha- toxin and their implication in gas-gangrene

ReferenceB05996
Principal Investigator / Supervisor Professor David Moss
Co-Investigators /
Co-Supervisors
Dr Ajit Basak
Institution Birkbeck College
DepartmentBiological Sciences
Funding typeResearch
Value (£) 163,695
StatusCompleted
TypeResearch Grant
Start date 01/10/1996
End date 01/10/1999
Duration36 months

Abstract

We propose to determine the structure of bacterial alpha-toxin of Clostridium perfringens, the toxin responsible for gas-gangrene, by X-ray analysis in three environments. The ground work (expression, purification and crystallisation) has already been carried out. Diffraction data to 1.9, 2.3 and 2.8A resolution have been obtained for three different crystal forms. We also intend to study the 3D-structure of alpha-toxin complexed with different inhibitors. We also plan to generate mutants of the alpha-toxin within the C-terminal domain and identify residues which play a role in hemolytic activity of the toxin. This work is a collaboration with CBDE Porton Down where the cloning and expression will be carried out.

Summary

unavailable
Committee Closed Committee - Biomolecular Sciences (BMS)
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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