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Substrate-specificity of protein import pathways in chloroplasts

ReferenceBBS/B/03629
Principal Investigator / Supervisor Professor Paul Jarvis
Co-Investigators /
Co-Supervisors
Institution University of Leicester
DepartmentBiology
Funding typeResearch
Value (£) 242,092
StatusCompleted
TypeResearch Grant
Start date 01/07/2004
End date 30/06/2007
Duration36 months

Abstract

The chloroplast protein import receptors, Toc159 and Toc34, are represented in Arabidopsis by four and two homologues, respectively, which are proposed to have different preprotein recognition specificities. Arabidopsis knockout mutants for each homologue will be used to investigate their involvement in substrate-specific import pathways: (1) Double mutant and transgenic complementation studies will assess functional relationships between the proteins; (2) Transcriptomics will compare the gene expression profiles of each mutant; (3) Proteomics will compare the protein complements of wild-type and mutant chloroplasts; (4) In vitro import assays will measure import rates for selected preproteins in the mutants; (5) Fluorescence microscopy and preprotein-GFP fusions will beused to study the protein defects of the mutants 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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