View source for 7xbg


==The crystal structure of RshSTT182/200 RBD-insert2-T346R-Y496G mutant in complex with human ACE2==
<StructureSection load='7xbg' size='340' side='right'caption='[[7xbg]], [[Resolution|resolution]] 3.37&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7xbg]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Rhinolophus_shameli Rhinolophus shameli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7XBG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7XBG 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]] 3.37&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=7xbg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7xbg OCA], [https://pdbe.org/7xbg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7xbg RCSB], [https://www.ebi.ac.uk/pdbsum/7xbg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7xbg ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ACE2_HUMAN ACE2_HUMAN] Carboxypeptidase which converts angiotensin I to angiotensin 1-9, a peptide of unknown function, and angiotensin II to angiotensin 1-7, a vasodilator. Also able to hydrolyze apelin-13 and dynorphin-13 with high efficiency. May be an important regulator of heart function. In case of human coronaviruses SARS and HCoV-NL63 infections, serve as functional receptor for the spike glycoprotein of both coronaviruses.<ref>PMID:10969042</ref> <ref>PMID:10924499</ref> <ref>PMID:14647384</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Bat-origin RshSTT182 and RshSTT200 coronaviruses (CoV) from Rhinolophus shameli in Southeast Asia (Cambodia) share 92.6% whole-genome identity with SARS-CoV-2 and show identical receptor-binding domains (RBDs). In this study, we determined the structure of the RshSTT182/200 receptor binding domain (RBD) in complex with human angiotensin-converting enzyme 2 (hACE2) and identified the key residues that influence receptor binding. The binding of the RshSTT182/200 RBD to ACE2 orthologs from 39 animal species, including 18 bat species, was used to evaluate its host range. The RshSTT182/200 RBD broadly recognized 21 of 39 ACE2 orthologs, although its binding affinities for the orthologs were weaker than those of the RBD of SARS-CoV-2. Furthermore, RshSTT182 pseudovirus could utilize human, fox, and Rhinolophus affinis ACE2 receptors for cell entry. Moreover, we found that SARS-CoV-2 induces cross-neutralizing antibodies against RshSTT182 pseudovirus. Taken together, these findings indicate that RshSTT182/200 can potentially infect susceptible animals, but requires further evolution to obtain strong interspecies transmission abilities like SARS-CoV-2.

Host range and structural analysis of bat-origin RshSTT182/200 coronavirus binding to human ACE2 and its animal orthologs.,Hu Y, Liu K, Han P, Xu Z, Zheng A, Pan X, Jia Y, Su C, Tang L, Wu L, Bai B, Zhao X, Tian D, Chen Z, Qi J, Wang Q, Gao GF EMBO J. 2023 Feb 15;42(4):e111737. doi: 10.15252/embj.2022111737. Epub 2023 Jan , 5. PMID:36519268<ref>PMID:36519268</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7xbg" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Rhinolophus shameli]]
[[Category: Han P]]
[[Category: Hu Y]]
[[Category: Liu KF]]
[[Category: Qi JX]]