1d4e: Difference between revisions

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[[Image:1d4e.jpg|left|200px]]<br /><applet load="1d4e" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1d4e, resolution 2.8&Aring;" />
'''CRYSTAL STRUCTURE OF THE FLAVOCYTOCHROME C FUMARATE REDUCTASE OF SHEWANELLA PUTREFACIENS STRAIN MR-1 COMPLEXED WITH FUMARATE'''<br />


==Overview==
==CRYSTAL STRUCTURE OF THE FLAVOCYTOCHROME C FUMARATE REDUCTASE OF SHEWANELLA PUTREFACIENS STRAIN MR-1 COMPLEXED WITH FUMARATE==
<StructureSection load='1d4e' size='340' side='right'caption='[[1d4e]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1d4e]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Shewanella_oneidensis Shewanella oneidensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D4E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1D4E FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FUM:FUMARIC+ACID'>FUM</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene></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=1d4e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d4e OCA], [https://pdbe.org/1d4e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1d4e RCSB], [https://www.ebi.ac.uk/pdbsum/1d4e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1d4e ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FCCA_SHEON FCCA_SHEON] Flavocytochrome that catalyzes the reduction of fumarate to succinate (PubMed:12196158, PubMed:12899636, PubMed:22458729). Is essential for fumarate respiration during anaerobic growth, acting as the terminal reductase (By similarity). Receives electrons from the membrane-bound tetraheme c-type cytochrome CymA (PubMed:12196158, PubMed:12899636, PubMed:19837833, PubMed:22458729). Under ferric iron-reducing conditions, can be part of an electron transport chain to ferric iron, by accepting electrons from CymA and transfering them to the c-type cytochrome MtrA (PubMed:19837833). Also plays an important role in the reduction of selenite to elemental selenium (PubMed:24435070). May act as a transient electron storage protein (PubMed:19837833).[UniProtKB:Q07WU7]<ref>PMID:12196158</ref> <ref>PMID:12899636</ref> <ref>PMID:19837833</ref> <ref>PMID:22458729</ref> <ref>PMID:24435070</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/d4/1d4e_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1d4e ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Fumarate respiration is one of the most widespread types of anaerobic respiration. The soluble fumarate reductase of Shewanella putrefaciens MR-1 is a periplasmic tetraheme flavocytochrome c. The crystal structures of the enzyme were solved to 2.9 A for the uncomplexed form and to 2.8 A and 2.5 A for the fumarate and the succinate-bound protein, respectively. The structures reveal a flexible capping domain linked to the FAD-binding domain. A catalytic mechanism for fumarate reduction based on the structure of the complexed protein is proposed. The mechanism for the reverse reaction is a model for the homologous succinate dehydrogenase (complex II) of the respiratory chain. In flavocytochrome c fumarate reductase, all redox centers are in van der Waals contact with one another, thus providing an efficient conduit of electrons from the hemes via the FAD to fumarate.
Fumarate respiration is one of the most widespread types of anaerobic respiration. The soluble fumarate reductase of Shewanella putrefaciens MR-1 is a periplasmic tetraheme flavocytochrome c. The crystal structures of the enzyme were solved to 2.9 A for the uncomplexed form and to 2.8 A and 2.5 A for the fumarate and the succinate-bound protein, respectively. The structures reveal a flexible capping domain linked to the FAD-binding domain. A catalytic mechanism for fumarate reduction based on the structure of the complexed protein is proposed. The mechanism for the reverse reaction is a model for the homologous succinate dehydrogenase (complex II) of the respiratory chain. In flavocytochrome c fumarate reductase, all redox centers are in van der Waals contact with one another, thus providing an efficient conduit of electrons from the hemes via the FAD to fumarate.


==About this Structure==
Structure and mechanism of the flavocytochrome c fumarate reductase of Shewanella putrefaciens MR-1.,Leys D, Tsapin AS, Nealson KH, Meyer TE, Cusanovich MA, Van Beeumen JJ Nat Struct Biol. 1999 Dec;6(12):1113-7. PMID:10581551<ref>PMID:10581551</ref>
1D4E is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Shewanella_putrefaciens Shewanella putrefaciens] with <scene name='pdbligand=HEM:'>HEM</scene>, <scene name='pdbligand=FAD:'>FAD</scene> and <scene name='pdbligand=FUM:'>FUM</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Succinate_dehydrogenase Succinate dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.3.99.1 1.3.99.1] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D4E OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Structure and mechanism of the flavocytochrome c fumarate reductase of Shewanella putrefaciens MR-1., Leys D, Tsapin AS, Nealson KH, Meyer TE, Cusanovich MA, Van Beeumen JJ, Nat Struct Biol. 1999 Dec;6(12):1113-7. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10581551 10581551]
</div>
[[Category: Shewanella putrefaciens]]
<div class="pdbe-citations 1d4e" style="background-color:#fffaf0;"></div>
[[Category: Single protein]]
== References ==
[[Category: Succinate dehydrogenase]]
<references/>
[[Category: Beeumen, J J.Van.]]
__TOC__
[[Category: Cusanovich, M A.]]
</StructureSection>
[[Category: Leys, D.]]
[[Category: Large Structures]]
[[Category: Meyer, T E.]]
[[Category: Shewanella oneidensis]]
[[Category: Tsapin, A S.]]
[[Category: Cusanovich MA]]
[[Category: FAD]]
[[Category: Leys D]]
[[Category: FUM]]
[[Category: Meyer TE]]
[[Category: HEM]]
[[Category: Tsapin AS]]
[[Category: tetraheme flavocytochrome c fumarate reductase]]
[[Category: Van Beeumen JJ]]
 
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