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[[Image:3qwo.png|left|200px]]
==Crystal structure of a motavizumab epitope-scaffold bound to motavizumab Fab==
<StructureSection load='3qwo' size='340' side='right' caption='[[3qwo]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3qwo]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QWO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3QWO FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ixt|3ixt]]</td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3qwo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qwo OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3qwo RCSB], [http://www.ebi.ac.uk/pdbsum/3qwo PDBsum]</span></td></tr>
<table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Respiratory syncytial virus (RSV) is a major cause of respiratory tract infections in infants, but an effective vaccine has not yet been developed. An ideal vaccine would elicit protective antibodies while avoiding virus-specific T-cell responses, which have been implicated in vaccine-enhanced disease with previous RSV vaccines. We propose that heterologous proteins designed to present RSV-neutralizing antibody epitopes and to elicit cognate antibodies have the potential to fulfill these vaccine requirements, as they can be fashioned to be free of viral T-cell epitopes. Here we present the design and characterization of three epitope-scaffolds that present the epitope of motavizumab, a potent neutralizing antibody that binds to a helix-loop-helix motif in the RSV fusion glycoprotein. Two of the epitope-scaffolds could be purified, and one epitope-scaffold based on a Staphylococcus aureus protein A domain bound motavizumab with kinetic and thermodynamic properties consistent with the free epitope-scaffold being stabilized in a conformation that closely resembled the motavizumab-bound state. This epitope-scaffold was well folded as assessed by circular dichroism and isothermal titration calorimetry, and its crystal structure (determined in complex with motavizumab to 1.9 A resolution) was similar to the computationally designed model, with all hydrogen-bond interactions critical for binding to motavizumab preserved. Immunization of mice with this epitope-scaffold failed to elicit neutralizing antibodies but did elicit sera with F binding activity. The elicitation of F binding antibodies suggests that some of the design criteria for eliciting protective antibodies without virus-specific T-cell responses are being met, but additional optimization of these novel immunogens is required.


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Design and characterization of epitope-scaffold immunogens that present the motavizumab epitope from respiratory syncytial virus.,McLellan JS, Correia BE, Chen M, Yang Y, Graham BS, Schief WR, Kwong PD J Mol Biol. 2011 Jun 24;409(5):853-66. Epub 2011 Apr 27. PMID:21549714<ref>PMID:21549714</ref>
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===Crystal structure of a motavizumab epitope-scaffold bound to motavizumab Fab===
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
 
</div>
 
== References ==
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{{ABSTRACT_PUBMED_21549714}}
 
==About this Structure==
[[3qwo]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QWO OCA].
 
==Reference==
<ref group="xtra">PMID:021549714</ref><references group="xtra"/>
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Staphylococcus aureus]]
[[Category: Staphylococcus aureus]]
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