7c8v

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<StructureSection load='7c8v' size='340' side='right'caption='[[7c8v]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
<StructureSection load='7c8v' size='340' side='right'caption='[[7c8v]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[7c8v]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/2019-ncov 2019-ncov] and [https://en.wikipedia.org/wiki/Synthetic_construct_sequences Synthetic construct sequences]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7C8V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7C8V FirstGlance]. <br>
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<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7C8V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7C8V FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.15&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">S, 2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2697049 2019-nCoV])</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</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=7c8v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7c8v OCA], [https://pdbe.org/7c8v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7c8v RCSB], [https://www.ebi.ac.uk/pdbsum/7c8v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7c8v ProSAT]</span></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=7c8v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7c8v OCA], [https://pdbe.org/7c8v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7c8v RCSB], [https://www.ebi.ac.uk/pdbsum/7c8v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7c8v ProSAT]</span></td></tr>
</table>
</table>
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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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==See Also==
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== References ==
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*[[Antibody 3D structures|Antibody 3D structures]]
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<references/>
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*[[Spike protein 3D structures|Spike protein 3D structures]]
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: 2019-ncov]]
 
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Synthetic construct sequences]]
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[[Category: Cai H]]
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[[Category: Cai, H]]
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[[Category: Li D]]
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[[Category: Li, D]]
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[[Category: Li T]]
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[[Category: Li, T]]
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[[Category: Qin W]]
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[[Category: Qin, W]]
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[[Category: Yao H]]
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[[Category: Yao, H]]
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[[Category: Coronavirus]]
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[[Category: Covid-19]]
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[[Category: Nanobody]]
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[[Category: Neutralizing antibody]]
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[[Category: Protein binding]]
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[[Category: Receptor binding protein]]
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[[Category: S protein]]
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[[Category: Sars-cov-2]]
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[[Category: Synthetic antibody]]
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[[Category: Vhh]]
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Current revision

Structure of sybody SR4 in complex with the SARS-CoV-2 S Receptor Binding domain (RBD)

PDB ID 7c8v

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Proteopedia Page Contributors and Editors (what is this?)

OCA

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