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The role of the 3 CheW proteins of Rhodobacter in the formation of chemosensory clusters

ReferencePRS12171
Principal Investigator / Supervisor Professor Judith Armitage
Co-Investigators /
Co-Supervisors
Professor Susan Lea
Institution University of Oxford
DepartmentBiochemistry
Funding typeResearch
Value (£) 169,227
StatusCompleted
TypeResearch Grant
Start date 01/12/1999
End date 01/01/2003
Duration37 months

Abstract

Chemosensory signal transduction probably involves the formation of dynamic clusters of receptors. In Rhodobacter sphaeroides, different receptors are expressed under different conditions and may be located at the poles of the cell or clustered in the cytoplasm. It is likely that the structural protein CheW is involved in the formation of clusters, R. sphaeroides has 3 CheW homologues. We will (i) identify which CheW proteins are involved in transmembrane receptor clustering and which in cytoplasmic clusters; (ii) which MCP proteins interact with which CheW proteins and whether the CheW proteins can complement; (iii) the domains involved in targeting the proteins to the specific receptors; (iv) the domains involved in interaction with the 3 CheA proteins and how these may be involved in signal transduction; (v) crystallise the proteins for structural comparison.

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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