9ovp: Difference between revisions
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==Cryo-EM structure of HCoV-OC43-C2 Spike glycoprotein in complex with 9O-acetyl GD3 sialoglycan== | |||
<StructureSection load='9ovp' size='340' side='right'caption='[[9ovp]], [[Resolution|resolution]] 1.89Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[9ovp]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_coronavirus_OC43 Human coronavirus OC43]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9OVP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9OVP 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]] 1.89Å</td></tr> | |||
[[Category: | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A1AR1:5-acetamido-8-O-(5-acetamido-9-O-acetyl-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranonosyl)-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranosonic+acid'>A1AR1</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=9ovp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9ovp OCA], [https://pdbe.org/9ovp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9ovp RCSB], [https://www.ebi.ac.uk/pdbsum/9ovp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9ovp ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/A0A1V0BZ81_CVHOC A0A1V0BZ81_CVHOC] Spike protein S1: attaches the virion to the cell membrane by interacting with host receptor, initiating the infection.[HAMAP-Rule:MF_04099] Spike protein S2': Acts as a viral fusion peptide which is unmasked following S2 cleavage occurring upon virus endocytosis.[HAMAP-Rule:MF_04099] Spike protein S2: 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] | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Human coronavirus OC43]] | |||
[[Category: Large Structures]] | |||
[[Category: Jin M]] | |||
[[Category: Rini JM]] | |||
Latest revision as of 15:04, 10 June 2026
Cryo-EM structure of HCoV-OC43-C2 Spike glycoprotein in complex with 9O-acetyl GD3 sialoglycan
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