2f19

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(New page: 200px<br /> <applet load="2f19" size="450" color="white" frame="true" align="right" spinBox="true" caption="2f19, resolution 2.8&Aring;" /> '''THREE-DIMENSIONAL ST...)
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[[Image:2f19.gif|left|200px]]<br />
 
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<applet load="2f19" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="2f19, resolution 2.8&Aring;" />
 
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'''THREE-DIMENSIONAL STRUCTURE OF TWO CRYSTAL FORMS OF FAB R19.9, FROM A MONOCLONAL ANTI-ARSONATE ANTIBODY'''<br />
 
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==Overview==
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==THREE-DIMENSIONAL STRUCTURE OF TWO CRYSTAL FORMS OF FAB R19.9, FROM A MONOCLONAL ANTI-ARSONATE ANTIBODY==
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The three-dimensional structure of FabR19.9 from a well-characterized, anti-p-azobenzenearsonate monoclonal antibody has been determined by x-ray, diffraction techniques in two crystalline forms (I and II) to a resolution, of 2.8 and 2.7 A, respectively. Essentially the same tertiary and, quaternary structure of the Fab is observed in the two forms. The major, difference resides in the intermolecular contacts, which are interpreted, to favor an irreversible transition from the metastable form I to the more, stable form II. The third complementarity-determining region of the heavy, chain (H3) folds back over the combining site and requires rearrangement, for hapten binding. This dynamic requirement on H3 is consistent with its, mobility in the structure and can explain hapten binding to an otherwise, inaccessible antibody combining site.
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<StructureSection load='2f19' size='340' side='right'caption='[[2f19]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2f19]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1f19 1f19]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2F19 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2F19 FirstGlance]. <br>
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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]] 2.8&#8491;</td></tr>
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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=2f19 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2f19 OCA], [https://pdbe.org/2f19 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2f19 RCSB], [https://www.ebi.ac.uk/pdbsum/2f19 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2f19 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/IGKC_MOUSE IGKC_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/f1/2f19_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=2f19 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The three-dimensional structure of FabR19.9 from a well-characterized anti-p-azobenzenearsonate monoclonal antibody has been determined by x-ray diffraction techniques in two crystalline forms (I and II) to a resolution of 2.8 and 2.7 A, respectively. Essentially the same tertiary and quaternary structure of the Fab is observed in the two forms. The major difference resides in the intermolecular contacts, which are interpreted to favor an irreversible transition from the metastable form I to the more stable form II. The third complementarity-determining region of the heavy chain (H3) folds back over the combining site and requires rearrangement for hapten binding. This dynamic requirement on H3 is consistent with its mobility in the structure and can explain hapten binding to an otherwise inaccessible antibody combining site.
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==About this Structure==
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Three-dimensional structure of two crystal forms of FabR19.9 from a monoclonal anti-arsonate antibody.,Lascombe MB, Alzari PM, Poljak RJ, Nisonoff A Proc Natl Acad Sci U S A. 1992 Oct 15;89(20):9429-33. PMID:1409652<ref>PMID:1409652</ref>
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2F19 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/ ]. This structure superseeds the now removed PDB entry 1F19. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2F19 OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Three-dimensional structure of two crystal forms of FabR19.9 from a monoclonal anti-arsonate antibody., Lascombe MB, Alzari PM, Poljak RJ, Nisonoff A, Proc Natl Acad Sci U S A. 1992 Oct 15;89(20):9429-33. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=1409652 1409652]
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</div>
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[[Category: Single protein]]
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<div class="pdbe-citations 2f19" style="background-color:#fffaf0;"></div>
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[[Category: Alzari, P.M.]]
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[[Category: Lascombe, M.B.]]
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[[Category: Nisonoff, A.]]
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[[Category: Poljak, R.J.]]
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[[Category: immunoglobulin]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sun Nov 18 09:49:22 2007''
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==See Also==
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*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Mus musculus]]
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[[Category: Alzari PM]]
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[[Category: Lascombe MB]]
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[[Category: Nisonoff A]]
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[[Category: Poljak RJ]]

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THREE-DIMENSIONAL STRUCTURE OF TWO CRYSTAL FORMS OF FAB R19.9, FROM A MONOCLONAL ANTI-ARSONATE ANTIBODY

PDB ID 2f19

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