1nek

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[[Image:1nek.gif|left|200px]]
[[Image:1nek.gif|left|200px]]
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{{Structure
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|PDB= 1nek |SIZE=350|CAPTION= <scene name='initialview01'>1nek</scene>, resolution 2.60&Aring;
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The line below this paragraph, containing "STRUCTURE_1nek", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CDN:CARDIOLIPIN'>CDN</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>, <scene name='pdbligand=UQ2:UBIQUINONE-2'>UQ2</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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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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|DOMAIN=
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{{STRUCTURE_1nek| PDB=1nek | SCENE= }}
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|RELATEDENTRY=[[1nen|1NEN]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1nek FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nek OCA], [http://www.ebi.ac.uk/pdbsum/1nek PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1nek RCSB]</span>
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'''Complex II (Succinate Dehydrogenase) From E. Coli with ubiquinone bound'''
'''Complex II (Succinate Dehydrogenase) From E. Coli with ubiquinone bound'''
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[[Category: Tornroth, S.]]
[[Category: Tornroth, S.]]
[[Category: Yankovskaya, V.]]
[[Category: Yankovskaya, V.]]
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[[Category: membrane protein]]
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[[Category: Membrane protein]]
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[[Category: oxygen respiratory chain]]
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[[Category: Oxygen respiratory chain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 02:26:19 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:29:16 2008''
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Revision as of 23:26, 2 May 2008

Image:1nek.gif


PDB ID 1nek

Drag the structure with the mouse to rotate
1nek, resolution 2.60Å ()
Ligands: , , , , , , , , ,
Gene: SDHA OR B0723 OR Z0877 OR ECS0748 (Escherichia coli), SDHB OR B0724 (Escherichia coli), SDHC OR CYBA OR B0721 OR Z0875 OR ECS0746 (Escherichia coli), SDHD OR B0722 (Escherichia coli)
Related: 1nen
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



Complex II (Succinate Dehydrogenase) From E. Coli with ubiquinone bound


Overview

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.

About this Structure

1NEK is a Protein complex structure of sequences from Escherichia coli. Full crystallographic information is available from OCA.

Reference

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:12560550 Page seeded by OCA on Sat May 3 02:26:19 2008

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