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Role of the PsbS protein in protective energy dissipation in the photosynthetic membrane of higher plants

Reference	BBS/B/03696
Principal Investigator / Supervisor	Professor Peter Horton
Co-Investigators / Co-Supervisors
Institution	University of Sheffield
Department	Molecular Biology and Biotechnology
Funding type	Research
Value (£)	255,521
Status	Completed
Type	Research Grant
Start date	01/04/2004
End date	30/09/2007
Duration	42 months

Abstract

This project concerns nonphotochemical quenching, the principle regulatory mechanism that controls the light harvesting system in plant thylakoid membranes, providing photoprotection against excess light. The focus of the research is the photosystem II protein PsbS, investigating its interaction with zeaxanthin and light harvesting complexes, in order to elucidate the molecular mechanism of energy dissipation. The project will combine in vivo kinetic measurements of plants with different zeaxanthin and PsbS contents, preparation of PsbS-enriched sub-membrane fractions, cross-linking and other approaches to determine its location in the membrane and its protein-protein interactions, and spectroscopic analysis of PsbS-zeaxanthin complexes.

Summary

unavailable

Committee	Closed Committee - Biochemistry & Cell Biology (BCB)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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