1iu9

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[[Image:1iu9.jpg|left|200px]]
 
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==Crystal structure of the C-terminal domain of aspartate racemase from Pyrococcus horikoshii OT3==
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The line below this paragraph, containing "STRUCTURE_1iu9", creates the "Structure Box" on the page.
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<StructureSection load='1iu9' size='340' side='right'caption='[[1iu9]], [[Resolution|resolution]] 2.04&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1iu9]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_horikoshii_OT3 Pyrococcus horikoshii OT3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IU9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1IU9 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.04&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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{{STRUCTURE_1iu9| PDB=1iu9 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1iu9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1iu9 OCA], [https://pdbe.org/1iu9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1iu9 RCSB], [https://www.ebi.ac.uk/pdbsum/1iu9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1iu9 ProSAT]</span></td></tr>
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</table>
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'''Crystal structure of the C-terminal domain of aspartate racemase from Pyrococcus horikoshii OT3'''
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== Function ==
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[https://www.uniprot.org/uniprot/RACD_PYRHO RACD_PYRHO]
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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The X-ray crystal structure has revealed two similar alpha/beta domains of aspartate racemase (AspR) from Pyrococcus horikoshii OT3, and identified a pseudo mirror-symmetric distribution of the residues around its active site [Liu et al. (2002) J. Mol. Biol. 319, 479-489]. Structural homology and functional similarity between the two domains suggested that this enzyme evolved from an ancestral domain by gene duplication and gene fusion. We have expressed solely the C-terminal domain of this AspR and determined its three-dimensional structure by X-ray crystallography. The high structural stability of this domain supports the existence of the ancestral domain. In comparison with other amino acid racemases (AARs), we suggest that gene duplication and gene fusion are conventional ways in the evolution of pyridoxal 5'-phosphate-independent AARs.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/iu/1iu9_consurf.spt"</scriptWhenChecked>
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1IU9 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_horikoshii Pyrococcus horikoshii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IU9 OCA].
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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==Reference==
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</jmolCheckbox>
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Structural insight into gene duplication, gene fusion and domain swapping in the evolution of PLP-independent amino acid racemases., Liu L, Iwata K, Yohda M, Miki K, FEBS Lett. 2002 Sep 25;528(1-3):114-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12297289 12297289]
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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=1iu9 ConSurf].
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[[Category: Aspartate racemase]]
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<div style="clear:both"></div>
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[[Category: Pyrococcus horikoshii]]
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__TOC__
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[[Category: Single protein]]
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</StructureSection>
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[[Category: Iwata, K.]]
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[[Category: Large Structures]]
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[[Category: Liu, L.]]
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[[Category: Pyrococcus horikoshii OT3]]
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[[Category: Miki, K.]]
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[[Category: Iwata K]]
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[[Category: Yohda, M.]]
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[[Category: Liu L]]
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[[Category: Aspartate racemase]]
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[[Category: Miki K]]
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[[Category: C-terminal domain]]
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[[Category: Yohda M]]
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[[Category: Crystal structure]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 20:25:26 2008''
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Current revision

Crystal structure of the C-terminal domain of aspartate racemase from Pyrococcus horikoshii OT3

PDB ID 1iu9

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