This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
8ut8
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==CryoEM structure of A/Shanghai/1/2013 H7 in complex with polyclonal Fab from mice immunized with H7 stem nanoparticles-15 days post-immunization== | |
| + | <StructureSection load='8ut8' size='340' side='right'caption='[[8ut8]], [[Resolution|resolution]] 3.20Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[8ut8]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Influenza_A_virus Influenza A virus] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8UT8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8UT8 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]] 3.2Å</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=8ut8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8ut8 OCA], [https://pdbe.org/8ut8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8ut8 RCSB], [https://www.ebi.ac.uk/pdbsum/8ut8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8ut8 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/V5IRV0_9INFA V5IRV0_9INFA] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Broadly neutralizing antibodies (bnAbs) targeting the hemagglutinin (HA) stem of influenza A viruses (IAVs) tend to be effective against either group 1 or group 2 viral diversity. In rarer cases, intergroup protective bnAbs can be generated by human antibody paratopes that accommodate the conserved glycan differences between the group 1 and group 2 stems. We applied germline-engaging nanoparticle immunogens to elicit a class of cross-group bnAbs from physiological precursor frequency within a humanized mouse model. Cross-group protection depended on the presence of the human bnAb precursors within the B cell repertoire, and the vaccine-expanded antibodies enriched for an N55T substitution in the CDRH2 loop, a hallmark of the bnAb class. Structurally, this single mutation introduced a flexible fulcrum to accommodate glycosylation differences and could alone enable cross-group protection. Thus, broad IAV immunity can be expanded from the germline repertoire via minimal antigenic input and an exceptionally simple antibody development pathway. | ||
| - | + | Eliciting a single amino acid change by vaccination generates antibody protection against group 1 and group 2 influenza A viruses.,Ray R, Nait Mohamed FA, Maurer DP, Huang J, Alpay BA, Ronsard L, Xie Z, Han J, Fernandez-Quintero M, Phan QA, Ursin RL, Vu M, Kirsch KH, Prum T, Rosado VC, Bracamonte-Moreno T, Okonkwo V, Bals J, McCarthy C, Nair U, Kanekiyo M, Ward AB, Schmidt AG, Batista FD, Lingwood D Immunity. 2024 Apr 18:S1074-7613(24)00143-2. doi: 10.1016/j.immuni.2024.03.022. PMID:38670113<ref>PMID:38670113</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 8ut8" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Influenza A virus]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Mus musculus]] | ||
| + | [[Category: Han J]] | ||
| + | [[Category: Huang J]] | ||
| + | [[Category: Ward AB]] | ||
Current revision
CryoEM structure of A/Shanghai/1/2013 H7 in complex with polyclonal Fab from mice immunized with H7 stem nanoparticles-15 days post-immunization
| |||||||||||
