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1dvf

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(New page: 200px<br /> <applet load="1dvf" size="450" color="white" frame="true" align="right" spinBox="true" caption="1dvf, resolution 1.9&Aring;" /> '''IDIOTOPIC ANTIBODY D...)
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[[Image:1dvf.gif|left|200px]]<br />
 
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<applet load="1dvf" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1dvf, resolution 1.9&Aring;" />
 
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'''IDIOTOPIC ANTIBODY D1.3 FV FRAGMENT-ANTIIDIOTOPIC ANTIBODY E5.2 FV FRAGMENT COMPLEX'''<br />
 
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==Overview==
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==IDIOTOPIC ANTIBODY D1.3 FV FRAGMENT-ANTIIDIOTOPIC ANTIBODY E5.2 FV FRAGMENT COMPLEX==
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Anti-idiotopic antibodies react with unique antigenic features, usually, associated with the combining sites, of other antibodies. They may thus, mimic specific antigens that react with the same antibodies. The, structural basis of this mimicry is analyzed here in detail for an, anti-idiotopic antibody that mimics the antigen, hen egg-white lysozyme., The crystal structure of an anti-hen-egg-white lysozyme antibody (D1.3), complexed with an anti-idiotopic antibody (E5.2) has been determined at a, nominal resolution of 1.9 A. E5.2 contacts substantially the same residues, of D1.3 as lysozyme, thus mimicking its binding to D1.3. The mimicry, embodies conservation of hydrogen bonding: six of the 14 protein-protein, hydrogen bonds bridging D1.3-E5.2 are structurally equivalent to hydrogen, bonds bridging D1.3-lysozyme. The mimicry includes a similar number of van, der Waals interactions. The mimicry of E5.2 for lysozyme, however, does, not extend to the topology of the non-polar surfaces of E5.2 and lysozyme, which are in contact with D1.3 as revealed by a quantitative analysis of, the contacting surface similarities between E5.2 and lysozyme. The, structure discussed herein shows that an anti-idiotopic antibody can, provide an approximate topological and binding-group mimicry of an, external antigen, especially in the case of the hydrophilic surfaces, even, though there is no sequence homology between the anti-idiotope and the, antigen.
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<StructureSection load='1dvf' size='340' side='right'caption='[[1dvf]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1dvf]] 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=1DVF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DVF FirstGlance]. <br>
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1DVF is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] with ZN as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1DVF OCA].
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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]] 1.9&#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=ZN:ZINC+ION'>ZN</scene></td></tr>
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==Reference==
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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=1dvf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dvf OCA], [https://pdbe.org/1dvf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1dvf RCSB], [https://www.ebi.ac.uk/pdbsum/1dvf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1dvf ProSAT]</span></td></tr>
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Crystal structure of an Fv-Fv idiotope-anti-idiotope complex at 1.9 A resolution., Braden BC, Fields BA, Ysern X, Dall'Acqua W, Goldbaum FA, Poljak RJ, Mariuzza RA, J Mol Biol. 1996 Nov 22;264(1):137-51. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8950273 8950273]
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/KV5A3_MOUSE KV5A3_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/dv/1dvf_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=1dvf ConSurf].
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Protein complex]]
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[[Category: Braden BC]]
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[[Category: Acqua, W.Dall.]]
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[[Category: Dall'Acqua W]]
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[[Category: Braden, B.C.]]
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[[Category: Fields BA]]
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[[Category: Fields, B.A.]]
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[[Category: Goldbaum FA]]
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[[Category: Goldbaum, F.A.]]
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[[Category: Mariuzza RA]]
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[[Category: Mariuzza, R.A.]]
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[[Category: Poljak RJ]]
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[[Category: Poljak, R.J.]]
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[[Category: Ysern X]]
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[[Category: Ysern, X.]]
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[[Category: ZN]]
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[[Category: complex (idiotope-antiidiotope)]]
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[[Category: immunoglobulin]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sun Nov 18 09:28:54 2007''
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Current revision

IDIOTOPIC ANTIBODY D1.3 FV FRAGMENT-ANTIIDIOTOPIC ANTIBODY E5.2 FV FRAGMENT COMPLEX

PDB ID 1dvf

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