7fdi: Difference between revisions

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA

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-'''Unreleased structure'''
-The entry 7fdi is ON HOLD
+==SARS-COV-2 Spike RBDMACSp36 binding to hACE2==
+<StructureSection load='7fdi' size='340' side='right'caption='[[7fdi]], [[Resolution|resolution]] 3.12&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[7fdi]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Severe_acute_respiratory_syndrome_coronavirus_2 Severe acute respiratory syndrome coronavirus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7FDI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7FDI 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]] 3.12&#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></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=7fdi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7fdi OCA], [https://pdbe.org/7fdi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7fdi RCSB], [https://www.ebi.ac.uk/pdbsum/7fdi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7fdi 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 ==
+There is an urgent need for animal models to study SARS-CoV-2 pathogenicity. Here, we generate and characterize a novel mouse-adapted SARS-CoV-2 strain, MASCp36, that causes severe respiratory symptoms, and mortality. Our model exhibits age- and gender-related mortality akin to severe COVID-19. Deep sequencing identified three amino acid substitutions, N501Y, Q493H, and K417N, at the receptor binding domain (RBD) of MASCp36, during in vivo passaging. All three RBD mutations significantly enhance binding affinity to its endogenous receptor, ACE2. Cryo-electron microscopy analysis of human ACE2 (hACE2), or mouse ACE2 (mACE2), in complex with the RBD of MASCp36, at 3.1 to 3.7 A resolution, reveals the molecular basis for the receptor-binding switch. N501Y and Q493H enhance the binding affinity to hACE2, whereas triple mutations at N501Y/Q493H/K417N decrease affinity and reduce infectivity of MASCp36. Our study provides a platform for studying SARS-CoV-2 pathogenesis, and unveils the molecular mechanism for its rapid adaptation and evolution.
-Authors: Wang, X., Cao, L.
+Characterization and structural basis of a lethal mouse-adapted SARS-CoV-2.,Sun S, Gu H, Cao L, Chen Q, Ye Q, Yang G, Li RT, Fan H, Deng YQ, Song X, Qi Y, Li M, Lan J, Feng R, Guo Y, Zhu N, Qin S, Wang L, Zhang YF, Zhou C, Zhao L, Chen Y, Shen M, Cui Y, Yang X, Wang X, Tan W, Wang H, Wang X, Qin CF Nat Commun. 2021 Sep 27;12(1):5654. doi: 10.1038/s41467-021-25903-x. PMID:34580297<ref>PMID:34580297</ref>
-Description: SARS-COV-2 Spike RBDMACSp36 binding to hACE2
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[Category: Unreleased Structures]]
+</div>
-[[Category: Cao, L]]
+<div class="pdbe-citations 7fdi" style="background-color:#fffaf0;"></div>
-[[Category: Wang, X]]
+==See Also==
+*[[Angiotensin-Converting Enzyme 3D structures|Angiotensin-Converting Enzyme 3D structures]]
+*[[Spike protein 3D structures|Spike protein 3D structures]]
+== References ==
+<references/>
+__TOC__
+</StructureSection>
+[[Category: Homo sapiens]]
+[[Category: Large Structures]]
+[[Category: Severe acute respiratory syndrome coronavirus 2]]
+[[Category: Cao L]]
+[[Category: Wang X]]