3h1h

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{{STRUCTURE_3h1h| PDB=3h1h | SCENE= }}
 
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===Cytochrome bc1 complex from chicken===
 
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{{ABSTRACT_PUBMED_9565029}}
 
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==Function==
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==Cytochrome bc1 complex from chicken==
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[[http://www.uniprot.org/uniprot/CYB_CHICK CYB_CHICK]] Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is a respiratory chain that generates an electrochemical potential coupled to ATP synthesis (By similarity). [[http://www.uniprot.org/uniprot/UCRI_CHICK UCRI_CHICK]] Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is a respiratory chain that generates an electrochemical potential coupled to ATP synthesis (By similarity).
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<StructureSection load='3h1h' size='340' side='right'caption='[[3h1h]], [[Resolution|resolution]] 3.16&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3h1h]] is a 20 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3H1H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3H1H 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]] 3.16&#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=BOG:B-OCTYLGLUCOSIDE'>BOG</scene>, <scene name='pdbligand=CDL:CARDIOLIPIN'>CDL</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PEE:1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOETHANOLAMINE'>PEE</scene>, <scene name='pdbligand=UQ:COENZYME+Q10,+(2Z,6E,10Z,14E,18E,22E,26Z)-ISOMER'>UQ</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=3h1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3h1h OCA], [https://pdbe.org/3h1h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3h1h RCSB], [https://www.ebi.ac.uk/pdbsum/3h1h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3h1h ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/D0VX31_CHICK D0VX31_CHICK]
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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/h1/3h1h_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=3h1h 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 bc1 is one of the three major respiratory enzyme complexes residing in the inner mitochondrial membrane. Cytochrome bc1 transfers electrons from ubiquinol to cytochrome c and uses the energy thus released to form an electrochemical gradient across the inner membrane. Our X-ray crystal structures of the complex from chicken, cow and rabbit in both the presence and absence of inhibitors of quinone oxidation, reveal two different locations for the extrinsic domain of one component of the enzyme, an iron-sulphur protein. One location is close enough to the supposed quinol oxidation site to allow reduction of the Fe-S protein by ubiquinol. The other site is close enough to cytochrome c1 to allow oxidation of the Fe-S protein by the cytochrome. As neither location will allow both reactions to proceed at a suitable rate, the reaction mechanism must involve movement of the extrinsic domain of the Fe-S component in order to shuttle electrons from ubiquinol to cytochrome c1. Such a mechanism has not previously been observed in redox protein complexes.
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==About this Structure==
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Electron transfer by domain movement in cytochrome bc1.,Zhang Z, Huang L, Shulmeister VM, Chi YI, Kim KK, Hung LW, Crofts AR, Berry EA, Kim SH Nature. 1998 Apr 16;392(6677):677-84. PMID:9565029<ref>PMID:9565029</ref>
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[[3h1h]] is a 20 chain structure with sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3H1H OCA].
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==See Also==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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*[[Cytochrome bc1 complex|Cytochrome bc1 complex]]
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</div>
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*[[Cytochrome c|Cytochrome c]]
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<div class="pdbe-citations 3h1h" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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<ref group="xtra">PMID:009565029</ref><references group="xtra"/><references/>
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*[[Cytochrome C 3D structures|Cytochrome C 3D structures]]
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*[[Cytochrome bc1 3D structures|Cytochrome bc1 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
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[[Category: Ubiquinol--cytochrome-c reductase]]
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[[Category: Large Structures]]
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[[Category: Berry, E A.]]
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[[Category: Berry EA]]
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[[Category: Chi, Y I.]]
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[[Category: Chi YI]]
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[[Category: Crofts, A R.]]
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[[Category: Crofts AR]]
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[[Category: Huang, L.]]
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[[Category: Huang L]]
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[[Category: Hung, L W.]]
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[[Category: Hung LW]]
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[[Category: Kim, K K.]]
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[[Category: Kim KK]]
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[[Category: Kim, S H.]]
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[[Category: Kim SH]]
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[[Category: Shulmeister, V M.]]
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[[Category: Shulmeister VM]]
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[[Category: Zhang, Z.]]
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[[Category: Zhang Z]]
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[[Category: Complex iii]]
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[[Category: Cytochrome b]]
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[[Category: Cytochrome bc1]]
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[[Category: Cytochrome c1]]
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[[Category: Disulfide bond]]
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[[Category: Electron transport]]
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[[Category: Heme]]
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[[Category: Heme protein]]
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[[Category: Iron]]
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[[Category: Iron-sulfur]]
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[[Category: Membrane]]
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[[Category: Membrane protein]]
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[[Category: Metal-binding]]
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[[Category: Mitochondrial processing protease]]
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[[Category: Mitochondrion]]
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[[Category: Mitochondrion inner membrane]]
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[[Category: Oxidoreductase]]
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[[Category: Redox enzyme]]
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[[Category: Respiratory chain]]
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[[Category: Rieske iron sulfur protein]]
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[[Category: Transit peptide]]
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[[Category: Transmembrane]]
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[[Category: Transport]]
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[[Category: Ubiquinone]]
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Cytochrome bc1 complex from chicken

PDB ID 3h1h

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