View source for 9b9e


==Prefusion F glycoprotein ectodomain of Nipah virus ectodomain in complex with DS90 nanobody==
<StructureSection load='9b9e' size='340' side='right'caption='[[9b9e]], [[Resolution|resolution]] 3.66&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[9b9e]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Henipavirus_nipahense Henipavirus nipahense] and [https://en.wikipedia.org/wiki/Vicugna_pacos Vicugna pacos]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9B9E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9B9E 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]] 3.66&#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=9b9e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9b9e OCA], [https://pdbe.org/9b9e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9b9e RCSB], [https://www.ebi.ac.uk/pdbsum/9b9e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9b9e ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FUS_NIPAV FUS_NIPAV] 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 plasma cell membrane fusion, the heptad repeat (HR) 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 plasma cell membranes. Directs fusion of viral and cellular membranes leading to delivery of the nucleocapsid into the cytoplasm. This fusion is pH independent and occurs directly at the outer cell membrane. The trimer of F1-F2 (F protein) probably interacts with HN at the virion surface. Upon HN binding to its cellular receptor, the hydrophobic fusion peptide is unmasked and interacts with the cellular membrane, inducing the fusion between cell and virion membranes. Later in infection, F proteins expressed at the plasma membrane of infected cells could mediate fusion with adjacent cells to form syncytia, a cytopathic effect that could lead to tissue necrosis (By similarity).
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</StructureSection>
[[Category: Henipavirus nipahense]]
[[Category: Large Structures]]
[[Category: Vicugna pacos]]
[[Category: Isaacs A]]
[[Category: Low YS]]
[[Category: Modhiran N]]
[[Category: Watterson D]]