View source for 4qy8


==Crystal Structure of anti-MSP2 Fv fragment (mAb6D8) in complex with 3D7-MSP2 14-30==
<StructureSection load='4qy8' size='340' side='right'caption='[[4qy8]], [[Resolution|resolution]] 1.35&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4qy8]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Plasmodium_falciparum_3D7 Plasmodium falciparum 3D7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4QY8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4QY8 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]] 1.353&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</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=4qy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4qy8 OCA], [https://pdbe.org/4qy8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4qy8 RCSB], [https://www.ebi.ac.uk/pdbsum/4qy8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4qy8 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/MSA2_PLAF7 MSA2_PLAF7] May play a role in the merozoite attachment to the erythrocyte.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Merozoite surface protein 2 (MSP2) is an intrinsically disordered, membrane-anchored antigen of the malaria parasite Plasmodium falciparum. MSP2 can elicit a protective, albeit strain-specific, antibody response in humans. Antibodies are generated to the conserved N- and C-terminal regions but many of these react poorly with the native antigen on the parasite surface. Here we demonstrate that recognition of a conserved N-terminal epitope by mAb 6D8 is incompatible with the membrane-bound conformation of that region, suggesting a mechanism by which native MSP2 escapes antibody recognition. Furthermore, crystal structures and NMR spectroscopy identify transient, strain-specific interactions between the 6D8 antibody and regions of MSP2 beyond the conserved epitope. These interactions account for the differential affinity of 6D8 for the two allelic families of MSP2, even though 6D8 binds to a fully conserved epitope. These results highlight unappreciated mechanisms that may modulate the specificity and efficacy of immune responses towards disordered antigens.

Structural basis for epitope masking and strain specificity of a conserved epitope in an intrinsically disordered malaria vaccine candidate.,Morales RA, MacRaild CA, Seow J, Krishnarjuna B, Drinkwater N, Rouet R, Anders RF, Christ D, McGowan S, Norton RS Sci Rep. 2015 May 12;5:10103. doi: 10.1038/srep10103. PMID:25965408<ref>PMID:25965408</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4qy8" style="background-color:#fffaf0;"></div>

==See Also==
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Plasmodium falciparum 3D7]]
[[Category: Anders RF]]
[[Category: Bankala K]]
[[Category: Christ D]]
[[Category: Drinkwater N]]
[[Category: MacRaild CA]]
[[Category: McGowan S]]
[[Category: Morales RAV]]
[[Category: Norton RS]]
[[Category: Rouet R]]
[[Category: Seow J]]