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| | ==Outer Membrane Cytochrome S Filament from Geobacter Sulfurreducens== | | ==Outer Membrane Cytochrome S Filament from Geobacter Sulfurreducens== |
| - | <SX load='6nef' size='340' side='right' viewer='molstar' caption='[[6nef]], [[Resolution|resolution]] 3.42Å' scene=''> | + | <SX load='6nef' size='340' side='right' viewer='molstar' caption='[[6nef]], [[Resolution|resolution]] 3.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6nef]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Geosl Geosl]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6NEF OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6NEF FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6nef]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacter_sulfurreducens_PCA Geobacter sulfurreducens PCA]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6NEF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6NEF FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.4Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6nef FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6nef OCA], [http://pdbe.org/6nef PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6nef RCSB], [http://www.ebi.ac.uk/pdbsum/6nef PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6nef ProSAT]</span></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=6nef FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6nef OCA], [https://pdbe.org/6nef PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6nef RCSB], [https://www.ebi.ac.uk/pdbsum/6nef PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6nef ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/OMCS_GEOSL OMCS_GEOSL]] Plays an important role in extracellular electron transfer. Can transfer electrons to insoluble Fe(3+) oxides as well as other extracellular electron acceptors, including Mn(4+) oxide and humic substances (PubMed:16332857, PubMed:20400557, PubMed:21236241). Essential for direct interspecies electron transfer (DIET) in cocultures with G. metallireducens (PubMed:23377933).<ref>PMID:16332857</ref> <ref>PMID:20400557</ref> <ref>PMID:21236241</ref> <ref>PMID:23377933</ref> | + | [https://www.uniprot.org/uniprot/OMCS_GEOSL OMCS_GEOSL] Plays an important role in extracellular electron transfer. Can transfer electrons to insoluble Fe(3+) oxides as well as other extracellular electron acceptors, including Mn(4+) oxide and humic substances (PubMed:16332857, PubMed:20400557, PubMed:21236241). Essential for direct interspecies electron transfer (DIET) in cocultures with G. metallireducens (PubMed:23377933).<ref>PMID:16332857</ref> <ref>PMID:20400557</ref> <ref>PMID:21236241</ref> <ref>PMID:23377933</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </div> | | </div> |
| | <div class="pdbe-citations 6nef" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 6nef" style="background-color:#fffaf0;"></div> |
| - | | |
| - | ==See Also== | |
| - | *[[Highest impact structures|Highest impact structures]] | |
| - | *[[User:Nikhil Malvankar/Cytochrome nanowires|User:Nikhil Malvankar/Cytochrome nanowires]] | |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </SX> | | </SX> |
| - | [[Category: Geosl]] | + | [[Category: Geobacter sulfurreducens PCA]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Bullitt, E]] | + | [[Category: Bullitt E]] |
| - | [[Category: Filman, D J]] | + | [[Category: Filman DJ]] |
| - | [[Category: Lovley, D R]] | + | [[Category: Lovley DR]] |
| - | [[Category: Marino, S F]] | + | [[Category: Marino SF]] |
| - | [[Category: Mester, Z]] | + | [[Category: Mester Z]] |
| - | [[Category: Strauss, M]] | + | [[Category: Strauss M]] |
| - | [[Category: Ward, J E]] | + | [[Category: Ward JE]] |
| - | [[Category: Yang, L]] | + | [[Category: Yang L]] |
| - | [[Category: Conductive]]
| + | |
| - | [[Category: Filament]]
| + | |
| - | [[Category: Nanowire]]
| + | |
| - | [[Category: Protein fibril]]
| + | |
| - | [[Category: Six-heme multiheme c-type cytochrome]]
| + | |
| Structural highlights
Function
OMCS_GEOSL Plays an important role in extracellular electron transfer. Can transfer electrons to insoluble Fe(3+) oxides as well as other extracellular electron acceptors, including Mn(4+) oxide and humic substances (PubMed:16332857, PubMed:20400557, PubMed:21236241). Essential for direct interspecies electron transfer (DIET) in cocultures with G. metallireducens (PubMed:23377933).[1] [2] [3] [4]
Publication Abstract from PubMed
Electrically conductive pili from Geobacter species, termed bacterial nanowires, are intensely studied for their biological significance and potential in the development of new materials. Using cryo-electron microscopy, we have characterized nanowires from conductive G. sulfurreducens pili preparations that are composed solely of head-to-tail stacked monomers of the six-heme C-type cytochrome OmcS. The unique fold of OmcS - closely wrapped around a continuous stack of hemes that can serve as an uninterrupted path for electron transport - generates a scaffold that supports the unbranched chain of hemes along the central axis of the filament. We present here, at 3.4 A resolution, the structure of this cytochrome-based filament and discuss its possible role in long-range biological electron transport.
Cryo-EM reveals the structural basis of long-range electron transport in a cytochrome-based bacterial nanowire.,Filman DJ, Marino SF, Ward JE, Yang L, Mester Z, Bullitt E, Lovley DR, Strauss M Commun Biol. 2019 Jun 19;2:219. doi: 10.1038/s42003-019-0448-9. eCollection 2019. PMID:31240257[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Mehta T, Coppi MV, Childers SE, Lovley DR. Outer membrane c-type cytochromes required for Fe(III) and Mn(IV) oxide reduction in Geobacter sulfurreducens. Appl Environ Microbiol. 2005 Dec;71(12):8634-41. doi:, 10.1128/AEM.71.12.8634-8641.2005. PMID:16332857 doi:http://dx.doi.org/10.1128/AEM.71.12.8634-8641.2005
- ↑ Leang C, Qian X, Mester T, Lovley DR. Alignment of the c-type cytochrome OmcS along pili of Geobacter sulfurreducens. Appl Environ Microbiol. 2010 Jun;76(12):4080-4. doi: 10.1128/AEM.00023-10. Epub, 2010 Apr 16. PMID:20400557 doi:http://dx.doi.org/10.1128/AEM.00023-10
- ↑ Qian X, Mester T, Morgado L, Arakawa T, Sharma ML, Inoue K, Joseph C, Salgueiro CA, Maroney MJ, Lovley DR. Biochemical characterization of purified OmcS, a c-type cytochrome required for insoluble Fe(III) reduction in Geobacter sulfurreducens. Biochim Biophys Acta. 2011 Apr;1807(4):404-12. doi: 10.1016/j.bbabio.2011.01.003., Epub 2011 Jan 12. PMID:21236241 doi:http://dx.doi.org/10.1016/j.bbabio.2011.01.003
- ↑ Shrestha PM, Rotaru AE, Summers ZM, Shrestha M, Liu F, Lovley DR. Transcriptomic and genetic analysis of direct interspecies electron transfer. Appl Environ Microbiol. 2013 Apr;79(7):2397-404. doi: 10.1128/AEM.03837-12. Epub , 2013 Feb 1. PMID:23377933 doi:http://dx.doi.org/10.1128/AEM.03837-12
- ↑ Filman DJ, Marino SF, Ward JE, Yang L, Mester Z, Bullitt E, Lovley DR, Strauss M. Cryo-EM reveals the structural basis of long-range electron transport in a cytochrome-based bacterial nanowire. Commun Biol. 2019 Jun 19;2:219. doi: 10.1038/s42003-019-0448-9. eCollection 2019. PMID:31240257 doi:http://dx.doi.org/10.1038/s42003-019-0448-9
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