View source for 6iln


==Cryo-EM structure of full Echovirus 6 particle at PH 5.5==
<SX load='6iln' size='340' side='right' viewer='molstar' caption='[[6iln]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6iln]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Echovirus_E6 Echovirus E6]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6ILN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6ILN 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]] 3.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SPH:SPHINGOSINE'>SPH</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=6iln FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6iln OCA], [https://pdbe.org/6iln PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6iln RCSB], [https://www.ebi.ac.uk/pdbsum/6iln PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6iln ProSAT]</span></td></tr>
</table>
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== Publication Abstract from PubMed ==
Enterovirus B (EV-B), a major proportion of the genus Enterovirus in the family Picornaviridae, is the causative agent of severe human infectious diseases. Although cellular receptors for coxsackievirus B in EV-B have been identified, receptors mediating virus entry, especially the uncoating process of echovirus and other EV-B remain obscure. Here, we found that human neonatal Fc receptor (FcRn) is the uncoating receptor for major EV-B. FcRn binds to the virus particles in the "canyon" through its FCGRT subunit. By obtaining multiple cryo-electron microscopy structures at different stages of virus entry at atomic or near-atomic resolution, we deciphered the underlying mechanisms of enterovirus attachment and uncoating. These structures revealed that different from the attachment receptor CD55, binding of FcRn to the virions induces efficient release of "pocket factor" under acidic conditions and initiates the conformational changes in viral particle, providing a structural basis for understanding the mechanisms of enterovirus entry.

Human Neonatal Fc Receptor Is the Cellular Uncoating Receptor for Enterovirus B.,Zhao X, Zhang G, Liu S, Chen X, Peng R, Dai L, Qu X, Li S, Song H, Gao Z, Yuan P, Liu Z, Li C, Shang Z, Li Y, Zhang M, Qi J, Wang H, Du N, Wu Y, Bi Y, Gao S, Shi Y, Yan J, Zhang Y, Xie Z, Wei W, Gao GF Cell. 2019 May 30;177(6):1553-1565.e16. doi: 10.1016/j.cell.2019.04.035. Epub, 2019 May 16. PMID:31104841<ref>PMID:31104841</ref>

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

==See Also==
*[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]]
== References ==
<references/>
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[[Category: Echovirus E6]]
[[Category: Large Structures]]
[[Category: Gao GF]]
[[Category: Liu S]]
[[Category: Peng R]]
[[Category: Zhao X]]