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4iau

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{{STRUCTURE_4iau| PDB=4iau | SCENE= }}
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==Atomic resolution structure of Geodin, a beta-gamma crystallin from Geodia cydonium==
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===Atomic resolution structure of Geodin, a beta-gamma crystallin from Geodia cydonium===
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<StructureSection load='4iau' size='340' side='right' caption='[[4iau]], [[Resolution|resolution]] 0.99&Aring;' scene=''>
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{{ABSTRACT_PUBMED_23695240}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4iau]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Geodia_cydonium Geodia cydonium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IAU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4IAU FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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<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=4iau FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4iau OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4iau RCSB], [http://www.ebi.ac.uk/pdbsum/4iau PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The betagamma-crystallin superfamily includes highly diverse proteins belonging to all of the kingdoms of life. Based on structural topology, these proteins are considered to be evolutionarily related to the long-lived betagamma-crystallins that constitute the vertebrate eye lens. This study reports the crystallographic structure at 0.99 A resolution of the two-domain betagamma-crystallin (geodin) from the sponge Geodia cydonium. This is the most ancient member of the betagamma-crystallin superfamily in metazoans. The X-ray structure shows that the geodin domains adopt the typical betagamma-crystallin fold with a paired Greek-key motif, thus confirming the hypothesis that the crystallin-type scaffold used in the evolution of bacteria and moulds was recruited very early in metazoans. As a significant new structural feature, the sponge protein possesses a unique interdomain interface made up by pairing between the second motif of the first domain and the first motif of the second domain. The atomic resolution also allowed a detailed analysis of the calcium-binding site of the protein.
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==About this Structure==
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A novel interdomain interface in crystallins: structural characterization of the betagamma-crystallin from Geodia cydonium at 0.99 A resolution.,Vergara A, Grassi M, Sica F, Pizzo E, D'Alessio G, Mazzarella L, Merlino A Acta Crystallogr D Biol Crystallogr. 2013 Jun;69(Pt 6):960-7. doi:, 10.1107/S0907444913003569. Epub 2013 May 2. PMID:23695240<ref>PMID:23695240</ref>
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[[4iau]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Geodia_cydonium Geodia cydonium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IAU OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<ref group="xtra">PMID:023695240</ref><references group="xtra"/><references/>
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</div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Geodia cydonium]]
[[Category: Geodia cydonium]]
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[[Category: Grassi, M.]]
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[[Category: Grassi, M]]
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[[Category: Mazzarella, L.]]
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[[Category: Mazzarella, L]]
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[[Category: Merlino, A.]]
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[[Category: Merlino, A]]
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[[Category: Sica, F.]]
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[[Category: Sica, F]]
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[[Category: Vergara, A.]]
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[[Category: Vergara, A]]
[[Category: Greek key strand motif]]
[[Category: Greek key strand motif]]
[[Category: Unknown function]]
[[Category: Unknown function]]

Revision as of 12:05, 21 December 2014

Atomic resolution structure of Geodin, a beta-gamma crystallin from Geodia cydonium

4iau, resolution 0.99Å

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