1oay: Difference between revisions

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-[[Image:1oay.gif|left|200px]]<br />
-<applet load="1oay" size="450" color="white" frame="true" align="right" spinBox="true"
-caption="1oay, resolution 2.66&Aring;" />
-'''ANTIBODY MULTISPECIFICITY MEDIATED BY CONFORMATIONAL DIVERSITY'''<br />
-==Overview==
+==Antibody multispecificity mediated by conformational diversity==
-A single antibody was shown to adopt different binding-site conformations, and thereby bind unrelated antigens. Analysis by both x-ray, crystallography and pre-steady-state kinetics revealed an equilibrium, between different preexisting isomers, one of which possessed a, promiscuous, low-affinity binding site for aromatic ligands, including the, immunizing hapten. A subsequent induced-fit isomerization led to, high-affinity complexes with a deep and narrow binding site. A protein, antigen identified by repertoire selection made use of an unrelated, antibody isomer with a wide, shallow binding site. Conformational, diversity, whereby one sequence adopts multiple structures and multiple, functions, can increase the effective size of the antibody repertoire but, may also lead to autoimmunity and allergy.
+<StructureSection load='1oay' size='340' side='right'caption='[[1oay]], [[Resolution|resolution]] 2.66&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1oay]] is a 6 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=1OAY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OAY 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]] 2.66&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FUR:FURAZOLIDONE'>FUR</scene></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=1oay FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oay OCA], [https://pdbe.org/1oay PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1oay RCSB], [https://www.ebi.ac.uk/pdbsum/1oay PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1oay 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/oa/1oay_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=1oay ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+A single antibody was shown to adopt different binding-site conformations and thereby bind unrelated antigens. Analysis by both x-ray crystallography and pre-steady-state kinetics revealed an equilibrium between different preexisting isomers, one of which possessed a promiscuous, low-affinity binding site for aromatic ligands, including the immunizing hapten. A subsequent induced-fit isomerization led to high-affinity complexes with a deep and narrow binding site. A protein antigen identified by repertoire selection made use of an unrelated antibody isomer with a wide, shallow binding site. Conformational diversity, whereby one sequence adopts multiple structures and multiple functions, can increase the effective size of the antibody repertoire but may also lead to autoimmunity and allergy.
-==About this Structure==
+Antibody multispecificity mediated by conformational diversity.,James LC, Roversi P, Tawfik DS Science. 2003 Feb 28;299(5611):1362-7. PMID:12610298<ref>PMID:12610298</ref>
-OAY is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Rattus_rattus Rattus rattus] with FUR as [http://en.wikipedia.org/wiki/ligand ligand]. Structure known Active Site: AC1. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1OAY OCA].
-==Reference==
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-Antibody multispecificity mediated by conformational diversity., James LC, Roversi P, Tawfik DS, Science. 2003 Feb 28;299(5611):1362-7. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12610298 12610298]
+</div>
-[[Category: Protein complex]]
+<div class="pdbe-citations 1oay" style="background-color:#fffaf0;"></div>
-[[Category: Rattus rattus]]
+== References ==
-[[Category: James, L.C.]]
+<references/>
-[[Category: Roversi, P.]]
+__TOC__
-[[Category: Tawfik, D.]]
+</StructureSection>
-[[Category: FUR]]
+[[Category: Large Structures]]
-[[Category: allergy]]
+[[Category: Mus musculus]]
-[[Category: antibody]]
+[[Category: James LC]]
-[[Category: conformational diversity]]
+[[Category: Roversi P]]
-[[Category: ige]]
+[[Category: Tawfik D]]
-[[Category: multispecificity]]
-''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov  5 16:48:42 2007''