View source for 9yaw


==Localized reconstruction of the asymmetric unit of SINV/EEEV in complex with Fab EEEV-33 at arm 4 at pH 5.6.==
<StructureSection load='9yaw' size='340' side='right'caption='[[9yaw]], [[Resolution|resolution]] 4.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[9yaw]] is a 14 chain structure with sequence from [https://en.wikipedia.org/wiki/Eastern_equine_encephalitis_virus Eastern equine encephalitis virus] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9YAW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9YAW FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=9yaw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9yaw OCA], [https://pdbe.org/9yaw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9yaw RCSB], [https://www.ebi.ac.uk/pdbsum/9yaw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9yaw ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/E9KXM2_EEEV E9KXM2_EEEV] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Delivery of the viral genome into host cells is a critical step in successful viral infection. Alphaviruses achieve this step by fusing the viral and endosomal membranes under acidic conditions. This process requires significant structural changes in the alphavirus glycoprotein organization. Structural characterization of acidic pH-induced conformational changes in alphavirus virions has remained elusive due to the rapid, transient nature of these states, conformational heterogeneity, and particle aggregation. Antibody binding studies conducted at elevated temperatures or under acidic pH conditions have further revealed the presence of transitional epitopes that are inaccessible on alphaviruses at room temperature or neutral pH. In this report, we present structural snapshots of the conformational changes in the glycoproteins and nucleocapsid core of a prototypical alphavirus, Eastern equine encephalitis virus, caused by exposure to 40 degrees C or pH 5.6. These findings provide insights into the structural transitions that occur prior to viral fusion with the endosomal membrane. This approach has also allowed us to define the molecular basis for recognition of a pan-alphavirus epitope by a patient-derived human antibody.

Asymmetric structural transitions in the icosahedral organization of Eastern equine encephalitis virus.,Bandyopadhyay A, Williamson LE, Buchman CD, Klose T, Crowe JE Jr, Kuhn RJ Nat Commun. 2026 May 15. doi: 10.1038/s41467-026-73197-8. PMID:42140932<ref>PMID:42140932</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 9yaw" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Eastern equine encephalitis virus]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Bandyopadhyay A]]
[[Category: Klose T]]
[[Category: Kuhn RJ]]