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[[Image:3fo0.jpg|left|200px]]


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==Crystal structure of hapten complex of catalytic elimination antibody 13G5 (wild-type)==
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<StructureSection load='3fo0' size='340' side='right'caption='[[3fo0]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[3fo0]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FO0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FO0 FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#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=BZH:5-[(2-AMINO-1H-BENZIMIDAZOL-6-YL)AMINO]-5-OXOPENTANOIC+ACID'>BZH</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
{{STRUCTURE_3fo0|  PDB=3fo0  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3fo0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fo0 OCA], [https://pdbe.org/3fo0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fo0 RCSB], [https://www.ebi.ac.uk/pdbsum/3fo0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fo0 ProSAT]</span></td></tr>
</table>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fo/3fo0_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=3fo0 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Design of catalysts featuring multiple functional groups is a desirable, yet formidable goal. Antibody 13G5, which accelerates the cleavage of unactivated benzisoxazoles, is one of few artificial enzymes that harness an acid and a base to achieve efficient proton transfer. X-ray structures of the Fab-hapten complexes of wild-type 13G5 and active-site variants now afford detailed insights into its mechanism. The parent antibody preorganizes Asp(H35) and Glu(L34) to abstract a proton from substrate and to orient a water molecule for leaving group stabilization, respectively. Remodeling the environment of the hydrogen bond donor with a compensatory network of ordered waters, as seen in the Glu(L34) to alanine mutant, leads to an impressive 10(9)-fold rate acceleration over the nonenzymatic reaction with acetate, illustrating the utility of buried water molecules in bifunctional catalysis. Generalization of these design principles may aid in creation of catalysts for other important chemical transformations.


===Crystal structure of hapten complex of catalytic elimination antibody 13G5 (wild-type)===
An aspartate and a water molecule mediate efficient acid-base catalysis in a tailored antibody pocket.,Debler EW, Muller R, Hilvert D, Wilson IA Proc Natl Acad Sci U S A. 2009 Nov 3;106(44):18539-44. Epub 2009 Oct 21. PMID:19846764<ref>PMID:19846764</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3fo0" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_19846764}}, adds the Publication Abstract to the page
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 19846764 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_19846764}}
__TOC__
 
</StructureSection>
==About this Structure==
[[Category: Homo sapiens]]
3FO0 is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus,_homo_sapiens Mus musculus, homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FO0 OCA].
[[Category: Large Structures]]
 
[[Category: Mus musculus]]
==Reference==
[[Category: Debler EW]]
<ref group="xtra">PMID:19846764</ref><references group="xtra"/>
[[Category: Wilson IA]]
[[Category: Mus musculus, homo sapiens]]
[[Category: Debler, E W.]]
[[Category: Wilson, I A.]]
[[Category: Acid base catalysis]]
[[Category: Catalytic antibody]]
[[Category: Chimeric fab]]
[[Category: Hapten complex]]
[[Category: Immune system]]
[[Category: Immunoglobulin]]
[[Category: Immunoglobulin domain]]
[[Category: Proton transfer]]
 
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