1rwt

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[[Image:1rwt.gif|left|200px]]
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==Overview==
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{{ABSTRACT_15029188}}
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The major light-harvesting complex of photosystem II (LHC-II) serves as the principal solar energy collector in the photosynthesis of green plants and presumably also functions in photoprotection under high-light conditions. Here we report the first X-ray structure of LHC-II in icosahedral proteoliposome assembly at atomic detail. One asymmetric unit of a large R32 unit cell contains ten LHC-II monomers. The 14 chlorophylls (Chl) in each monomer can be unambiguously distinguished as eight Chla and six Chlb molecules. Assignment of the orientation of the transition dipole moment of each chlorophyll has been achieved. All Chlb are located around the interface between adjacent monomers, and together with Chla they are the basis for efficient light harvesting. Four carotenoid-binding sites per monomer have been observed. The xanthophyll-cycle carotenoid at the monomer-monomer interface may be involved in the non-radiative dissipation of excessive energy, one of the photoprotective strategies that have evolved in plants.
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==About this Structure==
==About this Structure==
1RWT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. The following page contains interesting information on the relation of 1RWT with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb59_1.html Photosystem II]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RWT OCA].
1RWT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. The following page contains interesting information on the relation of 1RWT with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb59_1.html Photosystem II]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RWT OCA].
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==Reference==
 
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Crystal structure of spinach major light-harvesting complex at 2.72 A resolution., Liu Z, Yan H, Wang K, Kuang T, Zhang J, Gui L, An X, Chang W, Nature. 2004 Mar 18;428(6980):287-92. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15029188 15029188]
 
[[Category: Photosystem II]]
[[Category: Photosystem II]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: Membrane protein]]
[[Category: Membrane protein]]
[[Category: Plant]]
[[Category: Plant]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 08:00:00 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 26 17:56:17 2008''

Revision as of 14:56, 26 June 2008

Image:1rwt.png

Template:STRUCTURE 1rwt

Crystal Structure of Spinach Major Light-harvesting complex at 2.72 Angstrom Resolution


Template:ABSTRACT 15029188

About this Structure

1RWT is a Single protein structure of sequence from Spinacia oleracea. The following page contains interesting information on the relation of 1RWT with [Photosystem II]. Full crystallographic information is available from OCA.

Page seeded by OCA on Thu Jun 26 17:56:17 2008

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