2bx5: Difference between revisions

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[[Image:2bx5.jpg|left|200px]]


{{Structure
==Is FR1 the antibody's Achillies heel==
|PDB= 2bx5 |SIZE=350|CAPTION= <scene name='initialview01'>2bx5</scene>, resolution 2.7&Aring;
<StructureSection load='2bx5' size='340' side='right'caption='[[2bx5]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND=  
<table><tr><td colspan='2'>[[2bx5]] is a 15 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BX5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BX5 FirstGlance]. <br>
|ACTIVITY=  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7&#8491;</td></tr>
|GENE=  
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2bx5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bx5 OCA], [https://pdbe.org/2bx5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bx5 RCSB], [https://www.ebi.ac.uk/pdbsum/2bx5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bx5 ProSAT]</span></td></tr>
|DOMAIN=
</table>
|RELATEDENTRY=
== Function ==
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2bx5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bx5 OCA], [http://www.ebi.ac.uk/pdbsum/2bx5 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2bx5 RCSB]</span>
[https://www.uniprot.org/uniprot/Q9UL77_HUMAN Q9UL77_HUMAN]
}}
== Evolutionary Conservation ==
 
[[Image:Consurf_key_small.gif|200px|right]]
'''IS FR1 THE ANTIBODY'S ACHILLIES HEEL'''
Check<jmol>
 
  <jmolCheckbox>
 
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bx/2bx5_consurf.spt"</scriptWhenChecked>
==Overview==
    <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=2bx5 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Antibodies are the archetypal molecules of the Ig-fold superfamily. Their highly conserved beta-sheet architecture has evolved to avoid aggregation by protecting edge strands. However, the crystal structure of a human V kappa domain described here, reveals an exposed beta-edge strand which mediates assembly of a helical pentadecameric oligomer. This edge strand is highly conserved in V kappa domains but is both shortened and capped by the use of two sequential trans-proline residues in V lambda domains. We suggest that the exposure of this beta-edge in V kappa domains may explain why light-chain deposition disease is mediated predominantly by kappa antibodies.
Antibodies are the archetypal molecules of the Ig-fold superfamily. Their highly conserved beta-sheet architecture has evolved to avoid aggregation by protecting edge strands. However, the crystal structure of a human V kappa domain described here, reveals an exposed beta-edge strand which mediates assembly of a helical pentadecameric oligomer. This edge strand is highly conserved in V kappa domains but is both shortened and capped by the use of two sequential trans-proline residues in V lambda domains. We suggest that the exposure of this beta-edge in V kappa domains may explain why light-chain deposition disease is mediated predominantly by kappa antibodies.


==About this Structure==
Beta-edge interactions in a pentadecameric human antibody V kappa domain.,James LC, Jones PC, McCoy A, Tennent GA, Pepys MB, Famm K, Winter G J Mol Biol. 2007 Mar 30;367(3):603-8. Epub 2006 Nov 3. PMID:17292396<ref>PMID:17292396</ref>
2BX5 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BX5 OCA].
 
==Reference==
Beta-edge interactions in a pentadecameric human antibody V kappa domain., James LC, Jones PC, McCoy A, Tennent GA, Pepys MB, Famm K, Winter G, J Mol Biol. 2007 Mar 30;367(3):603-8. Epub 2006 Nov 3. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17292396 17292396]
[[Category: Escherichia coli]]
[[Category: Single protein]]
[[Category: James, L C.]]
[[Category: aggregation]]
[[Category: amyloid]]
[[Category: antibody]]
[[Category: fr1]]
[[Category: lcdd]]
[[Category: light-chain]]


''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:13:07 2008''
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2bx5" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: James LC]]
Retrieved from "https://proteopedia.org/2bx5"