Lightharvesting complexes in chlamydomonas reinhardtii. One of these proteins is the ringlike light harvesting complex 2, the protein investigated in this case study. Assembly of psi into supercomplexes with light harvesting complex lhc ii, cytochrome b 6f cytb 6f or nadph dehydrogenase. Lil3, a lightharvesting complex protein, links terpenoid. A lightharvesting complex has a complex of subunit proteins that may be part of a larger. Excitonic energy transfer in lightharvesting complexes in. Photosystem i psi is a pigmentprotein complex required for the lightdependent reactions of photosynthesis and participates in lightharvesting and redoxdriven chloroplast metabolism. In higher plant lhcii, the most abundant lightharvesting complex is composed of 3 gene products lhcb.
The evolution of algae and land plants and their photosynthetic machineries is closely connected to the development of the extended lightharvesting complex. Lightharvesting complexes of green plants wikipedia. Both antenna complexes feed excitation energy into the rc. Data sources and citation for sequence data use in this analysis pdf 2 mb. The structure of the lightharvesting chlorophyll abprotein complex, an integral membrane protein, has been determined at 3. In photosynthetic eukaryotes, light is absorbed by the lightharvesting complexes lhc of psii and psi and transferred to the corresponding.
A light harvesting complexlike protein in maintenance of. They use chlorophylls chls as redox components and can, therefore, absorb light by themselves. Pdf the lightharvesting complex of photosystem i in. What links here related changes upload file special pages permanent link page. Pdf lightharvesting chlorophyll abbinding proteins lhci associated with photosystem i psi and the genes encoding these proteins have been. Pdf the extended lightharvesting complex lhc protein. Pdf lateral mobility of the lightharvesting complex in.
Lightharvesting complex ii lhcii and its supramolecular. These antenna chls are on the one hand at a safe distance from the rc pigments. The light harvesting complex or antenna complex is an array of protein and chlorophyll molecules embedded in the thylakoid membrane of plants and cyanobacteria, which transfer light energy to one chlorophyll a molecule at the reaction center of a photosystem the antenna pigments are predominantly chlorophyll b, xanthophylls, and carotenes. Pdf atomic model of plant lightharvesting complex by. Rcs are mono phyletic, they are arianvts of a single prototype from which they evolved over the past.
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