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2ieq
From Proteopedia
(Difference between revisions)
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==Core Structure of S2 from the Human Coronavirus NL63 Spike Glycoprotein== | ==Core Structure of S2 from the Human Coronavirus NL63 Spike Glycoprotein== | ||
| - | <StructureSection load='2ieq' size='340' side='right' caption='[[2ieq]], [[Resolution|resolution]] 1.75Å' scene=''> | + | <StructureSection load='2ieq' size='340' side='right'caption='[[2ieq]], [[Resolution|resolution]] 1.75Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2ieq]] is a 3 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[2ieq]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Cvhnl Cvhnl]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IEQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IEQ FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">S ([ | + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">S ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=277944 CVHNL])</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ieq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ieq OCA], [https://pdbe.org/2ieq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ieq RCSB], [https://www.ebi.ac.uk/pdbsum/2ieq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ieq ProSAT]</span></td></tr> |
</table> | </table> | ||
== Function == | == Function == | ||
| - | [[ | + | [[https://www.uniprot.org/uniprot/SPIKE_CVHNL SPIKE_CVHNL]] S1 region attaches the virion to the cell membrane by interacting with human ACE2, initiating the infection. Binding to the receptor probably induces conformational changes in the S glycoprotein unmasking the fusion peptide of S2 region and activating membranes fusion. S2 region belongs to the class I viral fusion protein. Under the current model, the protein has at least 3 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) regions 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 (By similarity). |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ie/2ieq_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ie/2ieq_consurf.spt"</scriptWhenChecked> |
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 2ieq" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 2ieq" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[Sandbox 3001|Sandbox 3001]] | ||
| + | *[[Spike protein|Spike protein]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Cvhnl]] | [[Category: Cvhnl]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: Liu, J]] | [[Category: Liu, J]] | ||
[[Category: Human coronavirus]] | [[Category: Human coronavirus]] | ||
Revision as of 11:14, 31 March 2021
Core Structure of S2 from the Human Coronavirus NL63 Spike Glycoprotein
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