View source for 8w3n


==Crystal structure of prefusion-stabilized RSV F protein UFCR3==
<StructureSection load='8w3n' size='340' side='right'caption='[[8w3n]], [[Resolution|resolution]] 2.69&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8w3n]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_respiratory_syncytial_virus_A2 Human respiratory syncytial virus A2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8W3N OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8W3N FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.69&#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=8w3n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8w3n OCA], [https://pdbe.org/8w3n PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8w3n RCSB], [https://www.ebi.ac.uk/pdbsum/8w3n PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8w3n ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) cause human respiratory diseases and are major targets for vaccine development. In this study, we design uncleaved prefusion-closed (UFC) trimers for the fusion protein (F) of both viruses by examining mutations critical to F metastability. For RSV, we assess four previous prefusion F designs, including the first and second generations of DS-Cav1, SC-TM, and 847A. We then identify key mutations that can maintain prefusion F in a native-like, closed trimeric form (up to 76%) without introducing any interprotomer disulfide bond. For hMPV, we develop a stable UFC trimer with a truncated F(2)-F(1) linkage and an interprotomer disulfide bond. Dozens of UFC constructs are characterized by negative-stain electron microscopy (nsEM), x-ray crystallography (11 RSV-F structures and one hMPV-F structure), and antigenic profiling. Using an optimized RSV-F UFC trimer as bait, we identify three potent RSV neutralizing antibodies (NAbs) from a phage-displayed human antibody library, with a public NAb lineage targeting sites O and V and two cross-pneumovirus NAbs recognizing site III. In mouse immunization, rationally designed RSV-F and hMPV-F UFC trimers induce robust antibody responses with high neutralizing titers. Our study provides a foundation for future prefusion F-based RSV and hMPV vaccine development.

Rational design of uncleaved prefusion-closed trimer vaccines for human respiratory syncytial virus and metapneumovirus.,Lee YZ, Han J, Zhang YN, Ward G, Braz Gomes K, Auclair S, Stanfield RL, He L, Wilson IA, Zhu J Nat Commun. 2024 Nov 16;15(1):9939. doi: 10.1038/s41467-024-54287-x. PMID:39550381<ref>PMID:39550381</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8w3n" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human respiratory syncytial virus A2]]
[[Category: Large Structures]]
[[Category: Lee YZ]]
[[Category: Stanfield RL]]
[[Category: Wilson IA]]
[[Category: Zhu J]]