9js4

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'''Unreleased structure'''
 
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The entry 9js4 is ON HOLD
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==Cryo-EM structure of neutralizing antibody 8G3 in complex with BA.1 RBD==
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<StructureSection load='9js4' size='340' side='right'caption='[[9js4]], [[Resolution|resolution]] 3.80&Aring;' scene=''>
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Authors: Li, J., Li, H.
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== Structural highlights ==
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<table><tr><td colspan='2'>[[9js4]] is a 3 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=9JS4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9JS4 FirstGlance]. <br>
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Description: Cryo-EM structure of neutralizing antibody 8G3 in complex with BA.1 RBD
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.8&#8491;</td></tr>
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[[Category: Unreleased Structures]]
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=9js4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9js4 OCA], [https://pdbe.org/9js4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9js4 RCSB], [https://www.ebi.ac.uk/pdbsum/9js4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9js4 ProSAT]</span></td></tr>
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[[Category: Li, J]]
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</table>
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[[Category: Li, H]]
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== Function ==
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[https://www.uniprot.org/uniprot/SPIKE_SARS2 SPIKE_SARS2] attaches the virion to the cell membrane by interacting with host receptor, initiating the infection (By similarity). Binding to human ACE2 receptor and internalization of the virus into the endosomes of the host cell induces conformational changes in the Spike glycoprotein (PubMed:32142651, PubMed:32075877, PubMed:32155444). Uses also human TMPRSS2 for priming in human lung cells which is an essential step for viral entry (PubMed:32142651). Proteolysis by cathepsin CTSL may unmask the fusion peptide of S2 and activate membranes fusion within endosomes.[HAMAP-Rule:MF_04099]<ref>PMID:32075877</ref> <ref>PMID:32142651</ref> <ref>PMID:32155444</ref> mediates fusion of the virion and cellular membranes by acting as a class I viral fusion protein. Under the current model, the protein has at least three conformational states: pre-fusion native state, pre-hairpin intermediate state, and post-fusion hairpin state. During viral and target cell membrane fusion, the coiled coil regions (heptad repeats) assume a trimer-of-hairpins structure, positioning the fusion peptide in close proximity to the C-terminal region of the ectodomain. The formation of this structure appears to drive apposition and subsequent fusion of viral and target cell membranes.[HAMAP-Rule:MF_04099] Acts as a viral fusion peptide which is unmasked following S2 cleavage occurring upon virus endocytosis.[HAMAP-Rule:MF_04099]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Homo sapiens]]
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[[Category: Large Structures]]
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[[Category: Severe acute respiratory syndrome coronavirus 2]]
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[[Category: Li H]]
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[[Category: Li J]]

Current revision

Cryo-EM structure of neutralizing antibody 8G3 in complex with BA.1 RBD

PDB ID 9js4

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