View source for 6wqo


==Plasmodium vivax reticulocyte binding protein 2b (PvRBP2b) bound to human monoclonal antibody 283284==
<StructureSection load='6wqo' size='340' side='right'caption='[[6wqo]], [[Resolution|resolution]] 3.15&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6wqo]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Plasmodium_vivax_Sal-1 Plasmodium vivax Sal-1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WQO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6WQO 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]] 3.15&#8491;</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=6wqo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6wqo OCA], [https://pdbe.org/6wqo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6wqo RCSB], [https://www.ebi.ac.uk/pdbsum/6wqo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6wqo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A5K736_PLAVS A5K736_PLAVS] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Plasmodium vivax preferentially invades reticulocytes and recognition of these cells is mediated by P. vivax Reticulocyte Binding Protein 2b (PvRBP2b) binding to human Transferrin receptor 1 (TfR1) and Transferrin (Tf). Longitudinal cohort studies in Papua New Guinea, Thailand and Brazil show that PvRBP2b antibodies are correlated with protection against P. vivax infection and disease. Here, we isolate and characterize anti-PvRBP2b human monoclonal antibodies from two individuals in Cambodia with natural P. vivax infection. These antibodies bind with high affinities and map to different regions of PvRBP2b. Several human antibodies block PvRBP2b binding to reticulocytes and inhibit complex formation with human TfR1-Tf. We describe different structural mechanisms for functional inhibition, including either steric hindrance with TfR1-Tf or the reticulocyte membrane. These results show that naturally acquired human antibodies against PvRBP2b can inhibit its function which is important for P. vivax invasion.

Naturally acquired blocking human monoclonal antibodies to Plasmodium vivax reticulocyte binding protein 2b.,Chan LJ, Gandhirajan A, Carias LL, Dietrich MH, Vadas O, Visentin R, Franca CT, Menant S, Soldati-Favre D, Mueller I, King CL, Tham WH Nat Commun. 2021 Mar 9;12(1):1538. doi: 10.1038/s41467-021-21811-2. PMID:33750786<ref>PMID:33750786</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6wqo" style="background-color:#fffaf0;"></div>

==See Also==
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Plasmodium vivax Sal-1]]
[[Category: Chan LJ]]
[[Category: Dietrich MH]]
[[Category: Tham WH]]