1nen

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[[Image:1nen.jpg|left|200px]]
 
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{{Structure
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==Complex II (Succinate Dehydrogenase) From E. Coli with Dinitrophenol-17 inhibitor co-crystallized at the ubiquinone binding site==
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|PDB= 1nen |SIZE=350|CAPTION= <scene name='initialview01'>1nen</scene>, resolution 2.9&Aring;
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<StructureSection load='1nen' size='340' side='right'caption='[[1nen]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=OAA:OXALOACETATE+ION'>OAA</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=F3S:FE3-S4+CLUSTER'>F3S</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=DNT:2-[1-METHYLHEXYL]-4,6-DINITROPHENOL'>DNT</scene>, <scene name='pdbligand=CDN:CARDIOLIPIN'>CDN</scene> and <scene name='pdbligand=EPH:L-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE'>EPH</scene>
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<table><tr><td colspan='2'>[[1nen]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NEN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NEN FirstGlance]. <br>
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|ACTIVITY=
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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]] 2.9&#8491;</td></tr>
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|GENE= SDHA OR B0723 OR Z0877 OR ECS0748 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), SDHB OR B0724 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), SDHC OR CYBA OR B0721 OR Z0875 OR ECS0746 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), SDHD OR B0722 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CDN:CARDIOLIPIN'>CDN</scene>, <scene name='pdbligand=DNT:2-[1-METHYLHEXYL]-4,6-DINITROPHENOL'>DNT</scene>, <scene name='pdbligand=EPH:L-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE'>EPH</scene>, <scene name='pdbligand=F3S:FE3-S4+CLUSTER'>F3S</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=OAA:OXALOACETATE+ION'>OAA</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
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}}
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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=1nen FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nen OCA], [https://pdbe.org/1nen PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nen RCSB], [https://www.ebi.ac.uk/pdbsum/1nen PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nen ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/SDHA_ECOLI SDHA_ECOLI] Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth.<ref>PMID:24374335</ref> <ref>PMID:12560550</ref> <ref>PMID:16407191</ref> <ref>PMID:19710024</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/ne/1nen_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=1nen ConSurf].
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<div style="clear:both"></div>
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'''Complex II (Succinate Dehydrogenase) From E. Coli with Dinitrophenol-17 inhibitor co-crystallized at the ubiquinone binding site'''
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==See Also==
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*[[Succinate dehydrogenase 3D structures|Succinate dehydrogenase 3D structures]]
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== References ==
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==Overview==
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<references/>
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The structure of Escherichia coli succinate dehydrogenase (SQR), analogous to the mitochondrial respiratory complex II, has been determined, revealing the electron transport pathway from the electron donor, succinate, to the terminal electron acceptor, ubiquinone. It was found that the SQR redox centers are arranged in a manner that aids the prevention of reactive oxygen species (ROS) formation at the flavin adenine dinucleotide. This is likely to be the main reason SQR is expressed during aerobic respiration rather than the related enzyme fumarate reductase, which produces high levels of ROS. Furthermore, symptoms of genetic disorders associated with mitochondrial SQR mutations may be a result of ROS formation resulting from impaired electron transport in the enzyme.
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__TOC__
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</StructureSection>
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==About this Structure==
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1NEN is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NEN OCA].
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==Reference==
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Architecture of succinate dehydrogenase and reactive oxygen species generation., Yankovskaya V, Horsefield R, Tornroth S, Luna-Chavez C, Miyoshi H, Leger C, Byrne B, Cecchini G, Iwata S, Science. 2003 Jan 31;299(5607):700-4. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12560550 12560550]
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Protein complex]]
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[[Category: Large Structures]]
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[[Category: Byrne, B.]]
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[[Category: Byrne B]]
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[[Category: Cecchini, G.]]
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[[Category: Cecchini G]]
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[[Category: Horsefield, R.]]
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[[Category: Horsefield R]]
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[[Category: Iwata, S.]]
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[[Category: Iwata S]]
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[[Category: Leger, C.]]
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[[Category: Leger C]]
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[[Category: Luna-Chavez, C.]]
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[[Category: Luna-Chavez C]]
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[[Category: Miyoshi, H.]]
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[[Category: Miyoshi H]]
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[[Category: Tornroth, S.]]
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[[Category: Tornroth S]]
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[[Category: Yankovskaya, V.]]
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[[Category: Yankovskaya V]]
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[[Category: CA]]
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[[Category: CDN]]
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[[Category: DNT]]
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[[Category: EPH]]
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[[Category: F3S]]
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[[Category: FAD]]
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[[Category: FES]]
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[[Category: HEM]]
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[[Category: OAA]]
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[[Category: SF4]]
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[[Category: membrane protein]]
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[[Category: respiratory complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:55:54 2008''
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Current revision

Complex II (Succinate Dehydrogenase) From E. Coli with Dinitrophenol-17 inhibitor co-crystallized at the ubiquinone binding site

PDB ID 1nen

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