1etz

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[[Image:1etz.gif|left|200px]]
 
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{{Structure
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==THE THREE-DIMENSIONAL STRUCTURE OF AN ANTI-SWEETENER FAB, NC10.14, SHOWS THE EXTENT OF STRUCTURAL DIVERSITY IN ANTIGEN RECOGNITION BY IMMUNOGLOBULINS==
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|PDB= 1etz |SIZE=350|CAPTION= <scene name='initialview01'>1etz</scene>, resolution 2.6&Aring;
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<StructureSection load='1etz' size='340' side='right'caption='[[1etz]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=GAS:N-(P-CYANOPHENYL)-N&#39;-DIPHENYLMETHYL-GUANIDINE-ACETIC+ACID'>GAS</scene>
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<table><tr><td colspan='2'>[[1etz]] is a 4 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=1ETZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ETZ FirstGlance]. <br>
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|ACTIVITY=
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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]] 2.6&#8491;</td></tr>
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|GENE=
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GAS:N-(P-CYANOPHENYL)-N-DIPHENYLMETHYL-GUANIDINE-ACETIC+ACID'>GAS</scene></td></tr>
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|DOMAIN=
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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=1etz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1etz OCA], [https://pdbe.org/1etz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1etz RCSB], [https://www.ebi.ac.uk/pdbsum/1etz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1etz ProSAT]</span></td></tr>
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|RELATEDENTRY=[[2cgr|2CGR]], [[1cgs|1CGS]]
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1etz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1etz OCA], [http://www.ebi.ac.uk/pdbsum/1etz PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1etz RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/G0YP42_MOUSE G0YP42_MOUSE]
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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/et/1etz_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/main_output.php?pdb_ID=1etz ConSurf].
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<div style="clear:both"></div>
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'''THE THREE-DIMENSIONAL STRUCTURE OF AN ANTI-SWEETENER FAB, NC10.14, SHOWS THE EXTENT OF STRUCTURAL DIVERSITY IN ANTIGEN RECOGNITION BY IMMUNOGLOBULINS'''
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==See Also==
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*[[Antibody 3D structures|Antibody 3D structures]]
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*[[3D structures of non-human antibody|3D structures of non-human antibody]]
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==Overview==
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__TOC__
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The three-dimensional structure of a complex of an Fab from a murine IgG2b(lambda) antibody (NC10.14) with a high potency sweet tasting hap- ten, N-(p-cyanophenyl)-N'-(diphenylmethyl)-N"-(carboxymethyl)guan idine (NC174), has been determined to 2.6 A resolution by X-ray crystallography. This complex crystallized in the triclinic space group P1, with two molecules in the asymmetric unit. In contrast to a companion monoclonal antibody (NC6.8) with a kappa-type light chain and similar high affinity for the NC174 ligand, the NC10.14 antibody possessed a large and deep antigen combining site bounded primarily by the third complementarity-determining regions (CDR3s) of the light and heavy chains. CDR3 of the heavy chain dominated the site and its crown protruded into the external solvent as a type 1' beta-turn. NC174 was nested against HCDR3 and was held in place by two tryptophan side-chains (L91 and L96) from LCDR3. The diphenyl rings were accommodated on an upper tier of the binding pocket that is largely hydrophobic. At the floor of the site, a positively charged arginine side-chain (H95) stabilized the orientation of the electronegative cyano group of the hapten. The negative charge on the acetate group was partially neutralized by a hydrogen bond with the phenolic hydroxyl group of tyrosine H58. Comparisons of the modes of binding of NC174 to the NC6.8 and NC10.14 antibodies illustrate the enormous structural and mechanistic diversity manifest by immune responses.
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</StructureSection>
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[[Category: Large Structures]]
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==About this Structure==
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1ETZ is a [[Protein complex]] structure of sequences 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=1ETZ OCA].
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==Reference==
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The three-dimensional structure of a complex of a murine Fab (NC10. 14) with a potent sweetener (NC174): an illustration of structural diversity in antigen recognition by immunoglobulins., Guddat LW, Shan L, Broomell C, Ramsland PA, Fan Z, Anchin JM, Linthicum DS, Edmundson AB, J Mol Biol. 2000 Sep 29;302(4):853-72. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10993728 10993728]
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[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Protein complex]]
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[[Category: Anchin JM]]
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[[Category: Anchin, J M.]]
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[[Category: Broomell C]]
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[[Category: Broomell, C.]]
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[[Category: Edmundson AB]]
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[[Category: Edmundson, A B.]]
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[[Category: Fan Z]]
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[[Category: Fan, Z.]]
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[[Category: Guddat LW]]
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[[Category: Guddat, L W.]]
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[[Category: Linthicum DS]]
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[[Category: Linthicum, D S.]]
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[[Category: Ramsland PA]]
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[[Category: Ramsland, P A.]]
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[[Category: Shan L]]
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[[Category: Shan, L.]]
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[[Category: anti-sweetener fab]]
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[[Category: antigen recognition]]
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[[Category: antigen-antibody]]
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[[Category: complex]]
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[[Category: crystal structure]]
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[[Category: receptor mimicry]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:09:39 2008''
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Current revision

THE THREE-DIMENSIONAL STRUCTURE OF AN ANTI-SWEETENER FAB, NC10.14, SHOWS THE EXTENT OF STRUCTURAL DIVERSITY IN ANTIGEN RECOGNITION BY IMMUNOGLOBULINS

PDB ID 1etz

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