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| ==Crystal structure of a core domain of stomatin from Pyrococcus horikoshii== | | ==Crystal structure of a core domain of stomatin from Pyrococcus horikoshii== |
| <StructureSection load='3bk6' size='340' side='right' caption='[[3bk6]], [[Resolution|resolution]] 3.20Å' scene=''> | | <StructureSection load='3bk6' size='340' side='right'caption='[[3bk6]], [[Resolution|resolution]] 3.20Å' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[3bk6]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/'pyrococcus_shinkaii' 'pyrococcus shinkaii']. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BK6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3BK6 FirstGlance]. <br> | | <table><tr><td colspan='2'>[[3bk6]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_horikoshii Pyrococcus horikoshii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BK6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3BK6 FirstGlance]. <br> |
| </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PH1511 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=53953 'Pyrococcus shinkaii'])</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]] 3.2Å</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=3bk6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bk6 OCA], [http://pdbe.org/3bk6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3bk6 RCSB], [http://www.ebi.ac.uk/pdbsum/3bk6 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3bk6 ProSAT]</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=3bk6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bk6 OCA], [https://pdbe.org/3bk6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3bk6 RCSB], [https://www.ebi.ac.uk/pdbsum/3bk6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3bk6 ProSAT]</span></td></tr> |
| </table> | | </table> |
| | == Function == |
| | [https://www.uniprot.org/uniprot/PSTOM_PYRHO PSTOM_PYRHO] |
| == Evolutionary Conservation == | | == Evolutionary Conservation == |
| [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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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=3bk6 ConSurf]. | | </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=3bk6 ConSurf]. |
| <div style="clear:both"></div> | | <div style="clear:both"></div> |
| <div style="background-color:#fffaf0;">
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| == Publication Abstract from PubMed ==
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| Stomatin is a major integral membrane protein of human erythrocytes, the absence of which is associated with a form of hemolytic anemia known as hereditary stomatocytosis. However, the function of stomatin is not fully understood. An open reading frame, PH1511, from the hyperthermophilic archaeon Pyrococcus horikoshii encodes p-stomatin, a prokaryotic stomatin. Here, we report the first crystal structure of a stomatin ortholog, the core domain of the p-stomatin PH1511p (residues 56-234 of PH1511p, designated as PhSto(CD)). PhSto(CD) forms a novel homotrimeric structure. Three alpha/beta domains form a triangle of about 50 A on each side, and three alpha-helical segments of about 60 A in length extend from the apexes of the triangle. The alpha/beta domain of PhSto(CD) is partly similar in structure to the band-7 domain of mouse flotillin-2. While the alpha/beta domain is relatively rigid, the alpha-helical segment shows conformational flexibility, adapting to the neighboring environment. One alpha-helical segment forms an anti-parallel coiled coil with another alpha-helical segment from a symmetry-related molecule. The alpha-helical segment shows a heptad repeat pattern, and mainly hydrophobic residues form a coiled-coil interface. According to chemical cross-linking experiments, PhSto(CD) would be able to assemble into an oligomeric form. The coiled-coil fold observed in the crystal probably contributes to self-association.
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| Crystal structure of a core domain of stomatin from Pyrococcus horikoshii Illustrates a novel trimeric and coiled-coil fold.,Yokoyama H, Fujii S, Matsui I J Mol Biol. 2008 Feb 22;376(3):868-78. Epub 2008 Jan 8. PMID:18182167<ref>PMID:18182167</ref>
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| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| </div>
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| <div class="pdbe-citations 3bk6" style="background-color:#fffaf0;"></div>
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| == References ==
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| <references/>
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| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Pyrococcus shinkaii]] | | [[Category: Large Structures]] |
| [[Category: Fujii, S]]
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| [[Category: Matsui, I]]
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| [[Category: Yokoyama, H]]
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| [[Category: Archaea]]
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| [[Category: Coiled-coil]]
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| [[Category: Flotillin]]
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| [[Category: Membrane fusion]]
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| [[Category: Membrane protein]]
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| [[Category: Pyrococcus horikoshii]] | | [[Category: Pyrococcus horikoshii]] |
| [[Category: Spfh]] | | [[Category: Fujii S]] |
| [[Category: Stomatin]] | | [[Category: Matsui I]] |
| [[Category: Trafficking]] | | [[Category: Yokoyama H]] |
| [[Category: Transmembrane]]
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| [[Category: Trimer]]
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