The structural basis of non-photochemical quenching is revealed?
Light-harvesting complex II (LHCII, the major plant light-harvesting pigment-protein complex, efficiently harvests light-energy. However, if the incident light intensity is too high and photosynthesis becomes saturated, LHCII can switch into a quenching state that prevents photodamage. This important process is called non-photochemical quenching, or NPQ, and represents feedback control. Andrew Pascal et al. have recently proposed a detailed model of NPQ based upon the crystal structure of LHCII from spinach.
Cogdell
Richard J
RJ
Division of Biochemistry and Molecular Biology, Davidson Building, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow, UK G12 8QQ. r.cgdell@bio.ac.uk
D003461:Crystallography; D025461:Feedback, Physiological; D008027:Light; D045342:Light-Harvesting Protein Complexes / Q000737:chemistry / Q000502:physiology*; D010788:Photosynthesis / Q000502:physiology / Q000528:radiation effects; D010940:Plant Proteins / Q000737:chemistry / Q000502:physiology*; D017434:Protein Structure, Tertiary; D018724:Spinacia oleracea / Q000502:physiology
D045342:Light-Harvesting Protein Complexes; D010940:Plant Proteins