3kzi

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[[Image:3kzi.png|left|200px]]
 
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{{STRUCTURE_3kzi| PDB=3kzi | SCENE= }}
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==Crystal Structure of Monomeric Form of Cyanobacterial Photosystem II==
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<StructureSection load='3kzi' size='340' side='right'caption='[[3kzi]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3kzi]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermosynechococcus_vestitus_BP-1 Thermosynechococcus vestitus BP-1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KZI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3KZI FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.6&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BCR:BETA-CAROTENE'>BCR</scene>, <scene name='pdbligand=BCT:BICARBONATE+ION'>BCT</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=DGD:DIGALACTOSYL+DIACYL+GLYCEROL+(DGDG)'>DGD</scene>, <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=LHG:1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE'>LHG</scene>, <scene name='pdbligand=LMG:1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE'>LMG</scene>, <scene name='pdbligand=LMT:DODECYL-BETA-D-MALTOSIDE'>LMT</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=PHO:PHEOPHYTIN+A'>PHO</scene>, <scene name='pdbligand=PL9:2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE'>PL9</scene>, <scene name='pdbligand=SQD:1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL'>SQD</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3kzi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kzi OCA], [https://pdbe.org/3kzi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3kzi RCSB], [https://www.ebi.ac.uk/pdbsum/3kzi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3kzi ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PSBX_THEVB PSBX_THEVB] Involved in the binding and/or turnover of quinones at the Q(B) site of photosystem II (PSII). PSII is a light-driven water plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating a proton gradient subsequently used for ATP formation.[HAMAP-Rule:MF_01386]<ref>PMID:11230572</ref> <ref>PMID:20558739</ref> <ref>PMID:21367867</ref> <ref>PMID:25006873</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kz/3kzi_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3kzi ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The membrane-embedded photosystem II core complex (PSIIcc) uses light energy to oxidize water in photosynthesis. Information about the spatial structure of PSIIcc obtained from x-ray crystallography was so far derived from homodimeric PSIIcc of thermophilic cyanobacteria. Here, we report the first crystallization and structural analysis of the monomeric form of PSIIcc with high oxygen evolution capacity, isolated from Thermosynechococcus elongatus. The crystals belong to the space group C222(1), contain one monomer per asymmetric unit, and diffract to a resolution of 3.6 A. The x-ray diffraction pattern of the PSIIcc-monomer crystals exhibit less anisotropy (dependence of resolution on crystal orientation) compared with crystals of dimeric PSIIcc, and the packing of the molecules within the unit cell is different. In the monomer, 19 protein subunits, 35 chlorophylls, two pheophytins, the non-heme iron, the primary plastoquinone Q(A), two heme groups, 11 beta-carotenes, 22 lipids, seven detergent molecules, and the Mn(4)Ca cluster of the water oxidizing complex could be assigned analogous to the dimer. Based on the new structural information, the roles of lipids and protein subunits in dimer formation of PSIIcc are discussed. Due to the lack of non-crystallographic symmetry and the orientation of the membrane normal of PSIIcc perpendicular ( approximately 87 degrees ) to the crystallographic b-axis, further information about the structure of the Mn(4)Ca cluster is expected to become available from orientation-dependent spectroscopy on this new crystal form.
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===Crystal Structure of Monomeric Form of Cyanobacterial Photosystem II===
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Crystal structure of monomeric photosystem II from Thermosynechococcus elongatus at 3.6-a resolution.,Broser M, Gabdulkhakov A, Kern J, Guskov A, Muh F, Saenger W, Zouni A J Biol Chem. 2010 Aug 20;285(34):26255-62. Epub 2010 Jun 17. PMID:20558739<ref>PMID:20558739</ref>
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{{ABSTRACT_PUBMED_20558739}}
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==About this Structure==
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<div class="pdbe-citations 3kzi" style="background-color:#fffaf0;"></div>
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[[3kzi]] is a 19 chain structure of [[Cytochrome c]] and [[Photosystem II]] with sequence from [http://en.wikipedia.org/wiki/Thermosynechococcus_elongatus Thermosynechococcus elongatus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KZI OCA].
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==See Also==
==See Also==
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*[[Cytochrome c|Cytochrome c]]
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*[[Cytochrome C 3D structures|Cytochrome C 3D structures]]
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*[[Photosystem II|Photosystem II]]
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*[[Photosystem II 3D structures|Photosystem II 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:020558739</ref><references group="xtra"/>
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__TOC__
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[[Category: Thermosynechococcus elongatus]]
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</StructureSection>
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[[Category: Broser, M.]]
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[[Category: Large Structures]]
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[[Category: Gabdulkhakov, A.]]
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[[Category: Thermosynechococcus vestitus BP-1]]
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[[Category: Guskov, A.]]
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[[Category: Broser M]]
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[[Category: Kern, J.]]
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[[Category: Gabdulkhakov A]]
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[[Category: Saenger, W.]]
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[[Category: Guskov A]]
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[[Category: Zouni, A.]]
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[[Category: Kern J]]
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[[Category: Electron transport]]
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[[Category: Saenger W]]
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[[Category: Electron transport photosystem]]
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[[Category: Zouni A]]
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[[Category: Heme]]
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[[Category: Iron]]
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[[Category: Manganese]]
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[[Category: Membrane complex]]
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[[Category: Metal-binding]]
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[[Category: Photosynthesis]]
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[[Category: Photosystem ii]]
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[[Category: Ps ii]]
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[[Category: Ps2]]
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[[Category: Reaction center]]
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[[Category: Thylakoid]]
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[[Category: Transmembrane alpha-helix]]
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Current revision

Crystal Structure of Monomeric Form of Cyanobacterial Photosystem II

PDB ID 3kzi

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