View source for 6b0s


==Crystal structure of circumsporozoite protein aTSR domain in complex with 1710 antibody==
<StructureSection load='6b0s' size='340' side='right'caption='[[6b0s]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6b0s]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Plasmodium_falciparum Plasmodium falciparum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6B0S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6B0S 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]] 1.95&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=IPA:ISOPROPYL+ALCOHOL'>IPA</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=6b0s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6b0s OCA], [https://pdbe.org/6b0s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6b0s RCSB], [https://www.ebi.ac.uk/pdbsum/6b0s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6b0s ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CSP_PLAFO CSP_PLAFO] The circumsporozoite protein is the immunodominant surface antigen on the sporozoite (the infective stage of the malaria parasite that is transmitted from the mosquito to the vertebrate host).
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Antibodies against the central repeat of the Plasmodium falciparum (Pf) circumsporozoite protein (CSP) inhibit parasite activity and correlate with protection from malaria. However, the humoral response to the PfCSP C terminus (C-PfCSP) is less well characterized. Here, we describe B cell responses to C-PfCSP from European donors who underwent immunization with live Pf sporozoites (PfSPZ Challenge) under chloroquine prophylaxis (PfSPZ-CVac), and were protected against controlled human malaria infection. Out of 215 PfCSP-reactive monoclonal antibodies, only two unique antibodies were specific for C-PfCSP, highlighting the rare occurrence of C-PfCSP-reactive B cells in PfSPZ-CVac-induced protective immunity. These two antibodies showed poor sporozoite binding and weak inhibition of parasite traversal and development, and did not protect mice from infection with PfCSP transgenic Plasmodium berghei sporozoites. Structural analyses demonstrated that one antibody interacts with a polymorphic region overlapping two T cell epitopes, suggesting that variability in C-PfCSP may benefit parasite escape from humoral and cellular immunity. Our data identify important features underlying C-PfCSP shortcomings as a vaccine target.

Rare PfCSP C-terminal antibodies induced by live sporozoite vaccination are ineffective against malaria infection.,Scally SW, Murugan R, Bosch A, Triller G, Costa G, Mordmuller B, Kremsner PG, Sim BKL, Hoffman SL, Levashina EA, Wardemann H, Julien JP J Exp Med. 2017 Nov 22. pii: jem.20170869. doi: 10.1084/jem.20170869. PMID:29167197<ref>PMID:29167197</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6b0s" style="background-color:#fffaf0;"></div>

==See Also==
*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
*[[3D structures of human antibody|3D structures of human antibody]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Plasmodium falciparum]]
[[Category: Bosch A]]
[[Category: Julien JP]]
[[Category: Murugan R]]
[[Category: Scally SW]]
[[Category: Triller G]]
[[Category: Wardemann H]]