3fo9

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[[Image:3fo9.png|left|200px]]
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==Crystal structure of aldolase antibody 33F12 Fab' in complex with hapten 1,3-diketone==
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<StructureSection load='3fo9' size='340' side='right' caption='[[3fo9]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3fo9]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FO9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3FO9 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=DIK:5-{[4-(5-METHYL-3-OXOHEX-4-EN-1-YL)PHENYL]AMINO}-5-OXOPENTANOIC+ACID'>DIK</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1axt|1axt]]</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=3fo9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fo9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3fo9 RCSB], [http://www.ebi.ac.uk/pdbsum/3fo9 PDBsum]</span></td></tr>
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</table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fo/3fo9_consurf.spt"</scriptWhenChecked>
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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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</jmolCheckbox>
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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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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An enamine intermediate is believed to be the central feature of biological catalysts, such as aldolases and small molecule amine organocatalysts. Despite decades of investigation of naturally occurring aldolase enzymes and recent studies on designed aldolase antibodies and organocatalysts, direct structural observation of an enamine intermediate has proven to be rare. Herein, we report the observation of a stable enamine intermediate in the crystal structure of an aldolase antibody 33F12 in complex with a 1,3-diketone derivative. This enamine complex structure provides strong evidence that fewer residues are essential for amine catalysis within the hydrophobic environments of this catalytic antibody than speculated for natural aldolase enzymes and should serve to guide future studies aimed at the rational design of these types of catalysts, as well as organocatalysts. Indeed, enamine catalysis in proteins might be more simplistic than previously imagined.
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{{STRUCTURE_3fo9| PDB=3fo9 | SCENE= }}
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Direct observation of an enamine intermediate in amine catalysis.,Zhu X, Tanaka F, Lerner RA, Barbas Iii CF, Wilson IA J Am Chem Soc. 2009 Dec 30;131(51):18206-7. PMID:19968282<ref>PMID:19968282</ref>
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===Crystal structure of aldolase antibody 33F12 Fab' in complex with hapten 1,3-diketone===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_19968282}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[3fo9]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FO9 OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:019968282</ref><references group="xtra"/>
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[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Wilson, I A.]]
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[[Category: Wilson, I A]]
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[[Category: Zhu, X.]]
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[[Category: Zhu, X]]
[[Category: Aldolase antibody]]
[[Category: Aldolase antibody]]
[[Category: Amine catalysis]]
[[Category: Amine catalysis]]
[[Category: Enamine intermediate]]
[[Category: Enamine intermediate]]
[[Category: Immune system]]
[[Category: Immune system]]

Revision as of 10:24, 3 December 2014

Crystal structure of aldolase antibody 33F12 Fab' in complex with hapten 1,3-diketone

3fo9, resolution 1.90Å

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