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'''CRYSTAL STRUCTURE PHOTOSYSTEM II''' | '''CRYSTAL STRUCTURE PHOTOSYSTEM II''' | ||
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==About this Structure== | ==About this Structure== | ||
The following page contains interesting information on the relation of 1FE1 with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb22_1.html Photosystem I]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FE1 OCA]. | |||
==Reference== | ==Reference== | ||
Crystal structure of photosystem II from Synechococcus elongatus at 3.8 A resolution., Zouni A, Witt HT, Kern J, Fromme P, Krauss N, Saenger W, Orth P, Nature. 2001 Feb 8;409(6821):739-43. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11217865 11217865] | Crystal structure of photosystem II from Synechococcus elongatus at 3.8 A resolution., Zouni A, Witt HT, Kern J, Fromme P, Krauss N, Saenger W, Orth P, Nature. 2001 Feb 8;409(6821):739-43. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11217865 11217865] | ||
[[Category: Photosystem I]] | [[Category: Photosystem I]] | ||
[[Category: Fromme, P.]] | [[Category: Fromme, P.]] | ||
[[Category: Kern, J.]] | [[Category: Kern, J.]] | ||
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[[Category: Witt, H T.]] | [[Category: Witt, H T.]] | ||
[[Category: Zouni, A.]] | [[Category: Zouni, A.]] | ||
[[Category: | [[Category: Core- anten a light-harvesting system]] | ||
[[Category: | [[Category: Membrane protein]] | ||
[[Category: | [[Category: Photosynthesis]] | ||
[[Category: | [[Category: Photosynthetic reaction center]] | ||
[[Category: | [[Category: Thermophilic cyanobacterium]] | ||
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Revision as of 16:13, 2 May 2008
CRYSTAL STRUCTURE PHOTOSYSTEM II
OverviewOverview
Oxygenic photosynthesis is the principal energy converter on earth. It is driven by photosystems I and II, two large protein-cofactor complexes located in the thylakoid membrane and acting in series. In photosystem II, water is oxidized; this event provides the overall process with the necessary electrons and protons, and the atmosphere with oxygen. To date, structural information on the architecture of the complex has been provided by electron microscopy of intact, active photosystem II at 15-30 A resolution, and by electron crystallography on two-dimensional crystals of D1-D2-CP47 photosystem II fragments without water oxidizing activity at 8 A resolution. Here we describe the X-ray structure of photosystem II on the basis of crystals fully active in water oxidation. The structure shows how protein subunits and cofactors are spatially organized. The larger subunits are assigned and the locations and orientations of the cofactors are defined. We also provide new information on the position, size and shape of the manganese cluster, which catalyzes water oxidation.
About this StructureAbout this Structure
The following page contains interesting information on the relation of 1FE1 with [Photosystem I]. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structure of photosystem II from Synechococcus elongatus at 3.8 A resolution., Zouni A, Witt HT, Kern J, Fromme P, Krauss N, Saenger W, Orth P, Nature. 2001 Feb 8;409(6821):739-43. PMID:11217865 Page seeded by OCA on Fri May 2 16:13:11 2008