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[[Image:1jtp.gif|left|200px]]
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{{STRUCTURE_1jtp|  PDB=1jtp  |  SCENE=  }}
'''Degenerate interfaces in antigen-antibody complexes'''


==Degenerate interfaces in antigen-antibody complexes==
<StructureSection load='1jtp' size='340' side='right'caption='[[1jtp]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1jtp]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Camelus_dromedarius Camelus dromedarius] and [https://en.wikipedia.org/wiki/Meleagris_gallopavo Meleagris gallopavo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JTP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JTP 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]] 1.9&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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=1jtp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jtp OCA], [https://pdbe.org/1jtp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jtp RCSB], [https://www.ebi.ac.uk/pdbsum/1jtp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jtp ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/LYSC_MELGA LYSC_MELGA] Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents.
== 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/jt/1jtp_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1jtp ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
In most of the work dealing with the analysis of protein-protein interfaces, a single X-ray structure is available or selected, and implicitly it is assumed that this structure corresponds to the optimal complex for this pair of proteins. However, we have found a degenerate interface in a high-affinity antibody-antigen complex: the two independent complexes of the camel variable domain antibody fragment cAb-Lys3 and its antigen hen egg white lysozyme present in the asymmetric unit of our crystals show a difference in relative orientation between antibody and antigen, leading to important differences at the protein-protein interface. A third cAb-Lys3-hen lysozyme complex in a different crystal form adopts yet another relative orientation. Our results show that protein-protein interface characteristics can vary significantly between different specimens of the same high-affinity antibody-protein antigen complex. Consideration should be given to this type of observation when trying to establish general protein-protein interface characteristics.


==Overview==
Degenerate interfaces in antigen-antibody complexes.,Decanniere K, Transue TR, Desmyter A, Maes D, Muyldermans S, Wyns L J Mol Biol. 2001 Oct 26;313(3):473-8. PMID:11676532<ref>PMID:11676532</ref>
In most of the work dealing with the analysis of protein-protein interfaces, a single X-ray structure is available or selected, and implicitly it is assumed that this structure corresponds to the optimal complex for this pair of proteins. However, we have found a degenerate interface in a high-affinity antibody-antigen complex: the two independent complexes of the camel variable domain antibody fragment cAb-Lys3 and its antigen hen egg white lysozyme present in the asymmetric unit of our crystals show a difference in relative orientation between antibody and antigen, leading to important differences at the protein-protein interface. A third cAb-Lys3-hen lysozyme complex in a different crystal form adopts yet another relative orientation. Our results show that protein-protein interface characteristics can vary significantly between different specimens of the same high-affinity antibody-protein antigen complex. Consideration should be given to this type of observation when trying to establish general protein-protein interface characteristics.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1JTP is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Camelus_dromedarius Camelus dromedarius] and [http://en.wikipedia.org/wiki/Meleagris_gallopavo Meleagris gallopavo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JTP OCA].
</div>
<div class="pdbe-citations 1jtp" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Degenerate interfaces in antigen-antibody complexes., Decanniere K, Transue TR, Desmyter A, Maes D, Muyldermans S, Wyns L, J Mol Biol. 2001 Oct 26;313(3):473-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11676532 11676532]
*[[Antibody 3D structures|Antibody 3D structures]]
*[[Lysozyme 3D structures|Lysozyme 3D structures]]
*[[3D structures of non-human antibody|3D structures of non-human antibody]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Camelus dromedarius]]
[[Category: Camelus dromedarius]]
[[Category: Lysozyme]]
[[Category: Large Structures]]
[[Category: Meleagris gallopavo]]
[[Category: Meleagris gallopavo]]
[[Category: Protein complex]]
[[Category: Decanniere K]]
[[Category: Decanniere, K.]]
[[Category: Desmyter A]]
[[Category: Desmyter, A.]]
[[Category: Maes D]]
[[Category: Maes, D.]]
[[Category: Muyldermans S]]
[[Category: Muyldermans, S.]]
[[Category: Transue TR]]
[[Category: Transue, T R.]]
[[Category: Wyns L]]
[[Category: Wyns, L.]]
[[Category: Binding]]
[[Category: Heavy chain antibody]]
[[Category: Immunoglobulin]]
[[Category: Interface]]
[[Category: Vhh]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 21:54:28 2008''

Latest revision as of 08:45, 16 August 2023

Degenerate interfaces in antigen-antibody complexes

1jtp, resolution 1.90Å

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