1vf5

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[[Image:1vf5.gif|left|200px]]
 
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==Crystal Structure of Cytochrome b6f Complex from M.laminosus==
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The line below this paragraph, containing "STRUCTURE_1vf5", creates the "Structure Box" on the page.
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<StructureSection load='1vf5' size='340' side='right'caption='[[1vf5]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1vf5]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Mastigocladus_laminosus Mastigocladus laminosus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1um3 1um3]. The May 2011 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Cytochrome bc1'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2011_5 10.2210/rcsb_pdb/mom_2011_5]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VF5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1VF5 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&#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=CLA:CHLOROPHYLL+A'>CLA</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=OPC:(7R,17E)-4-HYDROXY-N,N,N,7-TETRAMETHYL-7-[(8E)-OCTADEC-8-ENOYLOXY]-10-OXO-3,5,9-TRIOXA-4-PHOSPHAHEPTACOS-17-EN-1-AMINIUM+4-OXIDE'>OPC</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=TDS:8-HYDROXY-5,7-DIMETHOXY-3-METHYL-2-TRIDECYL-4H-CHROMEN-4-ONE'>TDS</scene></td></tr>
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{{STRUCTURE_1vf5| PDB=1vf5 | SCENE= }}
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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=1vf5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vf5 OCA], [https://pdbe.org/1vf5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1vf5 RCSB], [https://www.ebi.ac.uk/pdbsum/1vf5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1vf5 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CYB6_MASLA CYB6_MASLA] Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions.[HAMAP-Rule:MF_00633]
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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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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vf/1vf5_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1vf5 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 cytochrome b6f complex provides the electronic connection between the photosystem I and photosystem II reaction centers of oxygenic photosynthesis and generates a transmembrane electrochemical proton gradient for adenosine triphosphate synthesis. A 3.0 angstrom crystal structure of the dimeric b6f complex from the thermophilic cyanobacterium Mastigocladus laminosus reveals a large quinone exchange cavity, stabilized by lipid, in which plastoquinone, a quinone-analog inhibitor, and a novel heme are bound. The core of the b6f complex is similar to the analogous respiratory cytochrome bc1 complex, but the domain arrangement outside the core and the complement of prosthetic groups are strikingly different. The motion of the Rieske iron-sulfur protein extrinsic domain, essential for electron transfer, must also be different in the b6f complex.
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'''Crystal Structure of Cytochrome b6f Complex from M.laminosus'''
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Structure of the cytochrome b6f complex of oxygenic photosynthesis: tuning the cavity.,Kurisu G, Zhang H, Smith JL, Cramer WA Science. 2003 Nov 7;302(5647):1009-14. Epub 2003 Oct 2. PMID:14526088<ref>PMID:14526088</ref>
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==Overview==
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The cytochrome b6f complex provides the electronic connection between the photosystem I and photosystem II reaction centers of oxygenic photosynthesis and generates a transmembrane electrochemical proton gradient for adenosine triphosphate synthesis. A 3.0 angstrom crystal structure of the dimeric b6f complex from the thermophilic cyanobacterium Mastigocladus laminosus reveals a large quinone exchange cavity, stabilized by lipid, in which plastoquinone, a quinone-analog inhibitor, and a novel heme are bound. The core of the b6f complex is similar to the analogous respiratory cytochrome bc1 complex, but the domain arrangement outside the core and the complement of prosthetic groups are strikingly different. The motion of the Rieske iron-sulfur protein extrinsic domain, essential for electron transfer, must also be different in the b6f complex.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1VF5 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mastigocladus_laminosus Mastigocladus laminosus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1um3 1um3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VF5 OCA].
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</div>
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<div class="pdbe-citations 1vf5" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Structure of the cytochrome b6f complex of oxygenic photosynthesis: tuning the cavity., Kurisu G, Zhang H, Smith JL, Cramer WA, Science. 2003 Nov 7;302(5647):1009-14. Epub 2003 Oct 2. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14526088 14526088]
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*[[Cytochrome b6|Cytochrome b6]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Cytochrome bc1]]
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[[Category: Large Structures]]
[[Category: Mastigocladus laminosus]]
[[Category: Mastigocladus laminosus]]
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[[Category: Protein complex]]
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[[Category: RCSB PDB Molecule of the Month]]
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[[Category: Cramer, W A.]]
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[[Category: Cramer WA]]
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[[Category: Kurisu, G.]]
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[[Category: Kurisu G]]
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[[Category: Smith, J L.]]
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[[Category: Smith JL]]
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[[Category: Zhang, H.]]
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[[Category: Zhang H]]
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[[Category: Electron transfer complex]]
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[[Category: Membrane protein complex]]
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[[Category: Photosynthesis]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 12:28:12 2008''
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Current revision

Crystal Structure of Cytochrome b6f Complex from M.laminosus

PDB ID 1vf5

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