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New page: left|200px<br /> <applet load="2aju" size="450" color="white" frame="true" align="right" spinBox="true" caption="2aju, resolution 1.50Å" /> '''Cyrstal structure o...
 
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[[Image:2aju.gif|left|200px]]<br />
<applet load="2aju" size="450" color="white" frame="true" align="right" spinBox="true"
caption="2aju, resolution 1.50&Aring;" />
'''Cyrstal structure of cocaine catalytic antibody 7A1 Fab''''<br />


==Overview==
==Cyrstal structure of cocaine catalytic antibody 7A1 Fab'==
Antibody 7A1 hydrolyzes cocaine to produce nonpsychoactive metabolites, ecgonine methyl ester and benzoic acid. Crystal structures of 7A1 Fab' and, six complexes with substrate cocaine, the transition state analog, products ecgonine methyl ester and benzoic acid together and individually, as well as heptaethylene glycol have been analyzed at 1.5-2.3 angstroms, resolution. Here, we present snapshots of the complete cycle of the, cocaine hydrolytic reaction at atomic resolution. Significant structural, rearrangements occur along the reaction pathway, but they are generally, limited to the binding site, including the ligands themselves. Several, interacting side chains either change their rotamers or alter their, mobility to accommodate the different reaction steps. CDR loop movements, (up to 2.3 angstroms) and substantial side chain rearrangements (up to 9, angstroms) alter the shape and size (approximately 320-500 angstroms3) of, the antibody active site from "open" to "closed" to "open" for the, substrate, transition state, and product states, respectively.
<StructureSection load='2aju' size='340' side='right'caption='[[2aju]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2aju]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AJU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AJU FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</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=2aju FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2aju OCA], [https://pdbe.org/2aju PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2aju RCSB], [https://www.ebi.ac.uk/pdbsum/2aju PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2aju ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/IGKC_MOUSE IGKC_MOUSE]
== 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/aj/2aju_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=2aju ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Antibody 7A1 hydrolyzes cocaine to produce nonpsychoactive metabolites ecgonine methyl ester and benzoic acid. Crystal structures of 7A1 Fab' and six complexes with substrate cocaine, the transition state analog, products ecgonine methyl ester and benzoic acid together and individually, as well as heptaethylene glycol have been analyzed at 1.5-2.3 angstroms resolution. Here, we present snapshots of the complete cycle of the cocaine hydrolytic reaction at atomic resolution. Significant structural rearrangements occur along the reaction pathway, but they are generally limited to the binding site, including the ligands themselves. Several interacting side chains either change their rotamers or alter their mobility to accommodate the different reaction steps. CDR loop movements (up to 2.3 angstroms) and substantial side chain rearrangements (up to 9 angstroms) alter the shape and size (approximately 320-500 angstroms3) of the antibody active site from "open" to "closed" to "open" for the substrate, transition state, and product states, respectively.


==About this Structure==
Complete reaction cycle of a cocaine catalytic antibody at atomic resolution.,Zhu X, Dickerson TJ, Rogers CJ, Kaufmann GF, Mee JM, McKenzie KM, Janda KD, Wilson IA Structure. 2006 Feb;14(2):205-16. PMID:16472740<ref>PMID:16472740</ref>
2AJU is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2AJU OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Complete reaction cycle of a cocaine catalytic antibody at atomic resolution., Zhu X, Dickerson TJ, Rogers CJ, Kaufmann GF, Mee JM, McKenzie KM, Janda KD, Wilson IA, Structure. 2006 Feb;14(2):205-16. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16472740 16472740]
</div>
<div class="pdbe-citations 2aju" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Protein complex]]
[[Category: Wilson IA]]
[[Category: Wilson, I.A.]]
[[Category: Zhu X]]
[[Category: Zhu, X.]]
[[Category: catalytic antibody]]
[[Category: cocaine]]
[[Category: fab]]
[[Category: hydrolytic]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sun Nov 18 09:47:12 2007''

Latest revision as of 07:25, 23 August 2023

Cyrstal structure of cocaine catalytic antibody 7A1 Fab'

2aju, resolution 1.50Å

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