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| | <StructureSection load='1zoy' size='340' side='right'caption='[[1zoy]], [[Resolution|resolution]] 2.40Å' scene=''> | | <StructureSection load='1zoy' size='340' side='right'caption='[[1zoy]], [[Resolution|resolution]] 2.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1zoy]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZOY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZOY FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1zoy]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZOY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZOY FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><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=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=UQ1:UBIQUINONE-1'>UQ1</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1zp0|1zp0]]</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EPH:L-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE'>EPH</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=UQ1:UBIQUINONE-1'>UQ1</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Succinate_dehydrogenase_(quinone) Succinate dehydrogenase (quinone)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.3.5.1 1.3.5.1] </span></td></tr>
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1zoy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zoy OCA], [https://pdbe.org/1zoy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zoy RCSB], [https://www.ebi.ac.uk/pdbsum/1zoy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zoy ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1zoy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zoy OCA], [http://pdbe.org/1zoy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zoy RCSB], [http://www.ebi.ac.uk/pdbsum/1zoy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1zoy ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/DHSD_PIG DHSD_PIG]] Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q). [[http://www.uniprot.org/uniprot/SDHA_PIG SDHA_PIG]] Flavoprotein (FP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q). Can act as a tumor suppressor (By similarity). [[http://www.uniprot.org/uniprot/SDHB_PIG SDHB_PIG]] Iron-sulfur protein (IP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q). | + | [https://www.uniprot.org/uniprot/SDHA_PIG SDHA_PIG] Flavoprotein (FP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q). Can act as a tumor suppressor (By similarity). |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | <jmolCheckbox> | | <jmolCheckbox> |
| | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zo/1zoy_consurf.spt"</scriptWhenChecked> | | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zo/1zoy_consurf.spt"</scriptWhenChecked> |
| - | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> |
| | <text>to colour the structure by Evolutionary Conservation</text> | | <text>to colour the structure by Evolutionary Conservation</text> |
| | </jmolCheckbox> | | </jmolCheckbox> |
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| | | | |
| | ==See Also== | | ==See Also== |
| - | *[[Succinate Dehydrogenase|Succinate Dehydrogenase]] | + | *[[Succinate dehydrogenase 3D structures|Succinate dehydrogenase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
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| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| | [[Category: Sus scrofa]] | | [[Category: Sus scrofa]] |
| - | [[Category: Bartlam, M]] | + | [[Category: Bartlam M]] |
| - | [[Category: Huo, X]] | + | [[Category: Huo X]] |
| - | [[Category: Rao, Z]] | + | [[Category: Rao Z]] |
| - | [[Category: Su, D]] | + | [[Category: Su D]] |
| - | [[Category: Sun, F]] | + | [[Category: Sun F]] |
| - | [[Category: Wang, A]] | + | [[Category: Wang A]] |
| - | [[Category: Xu, J]] | + | [[Category: Xu J]] |
| - | [[Category: Zhai, Y]] | + | [[Category: Zhai Y]] |
| - | [[Category: Membrane protein structure]]
| + | |
| - | [[Category: Mitochondrial respiratory complex ii]]
| + | |
| - | [[Category: Oxidoreductase]]
| + | |
| - | [[Category: Succinate]]
| + | |
| - | [[Category: Ubiquinone oxidoreductase]]
| + | |
| Structural highlights
1zoy is a 4 chain structure with sequence from Sus scrofa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Method: | X-ray diffraction, Resolution 2.4Å |
| Ligands: | , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
SDHA_PIG Flavoprotein (FP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q). Can act as a tumor suppressor (By similarity).
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The mitochondrial respiratory Complex II or succinate:ubiquinone oxidoreductase (SQR) is an integral membrane protein complex in both the tricarboxylic acid cycle and aerobic respiration. Here we report the first crystal structure of Complex II from porcine heart at 2.4 A resolution and its complex structure with inhibitors 3-nitropropionate and 2-thenoyltrifluoroacetone (TTFA) at 3.5 A resolution. Complex II is comprised of two hydrophilic proteins, flavoprotein (Fp) and iron-sulfur protein (Ip), and two transmembrane proteins (CybL and CybS), as well as prosthetic groups required for electron transfer from succinate to ubiquinone. The structure correlates the protein environments around prosthetic groups with their unique midpoint redox potentials. Two ubiquinone binding sites are discussed and elucidated by TTFA binding. The Complex II structure provides a bona fide model for study of the mitochondrial respiratory system and human mitochondrial diseases related to mutations in this complex.
Crystal structure of mitochondrial respiratory membrane protein complex II.,Sun F, Huo X, Zhai Y, Wang A, Xu J, Su D, Bartlam M, Rao Z Cell. 2005 Jul 1;121(7):1043-57. PMID:15989954[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Sun F, Huo X, Zhai Y, Wang A, Xu J, Su D, Bartlam M, Rao Z. Crystal structure of mitochondrial respiratory membrane protein complex II. Cell. 2005 Jul 1;121(7):1043-57. PMID:15989954 doi:10.1016/j.cell.2005.05.025
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