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The biogenesis of integral cytoplasmic membrane proteins

ReferenceC13720
Principal Investigator / Supervisor Professor Michael Ehrmann
Co-Investigators /
Co-Supervisors
Institution Cardiff University
DepartmentSchool of Biosciences
Funding typeResearch
Value (£) 157,640
StatusCompleted
TypeResearch Grant
Start date 19/02/2001
End date 19/02/2004
Duration36 months

Abstract

The involvement of the general targeting factor SecA in the biogenesis of complex cytoplasmic membrane proteins is a matter of debate. To address this question, we developed a new method, Target Directed Proteolysis (TDP) to inactivate essential proteins in vivo. TDP uses Tobacco Etch Virus NIa (TEV) protease, which recognises a seven amino acid consensus sequence. Because of its distinct specificity, TEV protease can be expressed in the cytoplasm without interfering with viability. SecA, which is not a natural substrate of TEV protease, is proteolysed if it carries the appropriate cleavage site. We will determine the consequences of proteolytic inactivation of SecA on membrane insertion in vivo.

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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