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Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses
Broadly neutralizing antibodies (bnAbs) targeting conserved influenza A virus (IAV) hemagglutinin (HA) epitopes can provide valuable information for accelerating universal vaccine designs. Here, we report structural details for heterosubtypic recognition of HA from circulating and emerging IAVs by t...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7835374/ https://www.ncbi.nlm.nih.gov/pubmed/33495478 http://dx.doi.org/10.1038/s41467-020-20879-6 |
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author | Harshbarger, Wayne D. Deming, Derrick Lockbaum, Gordon J. Attatippaholkun, Nattapol Kamkaew, Maliwan Hou, Shurong Somasundaran, Mohan Wang, Jennifer P. Finberg, Robert W. Zhu, Quan Karen Schiffer, Celia A. Marasco, Wayne A. |
author_facet | Harshbarger, Wayne D. Deming, Derrick Lockbaum, Gordon J. Attatippaholkun, Nattapol Kamkaew, Maliwan Hou, Shurong Somasundaran, Mohan Wang, Jennifer P. Finberg, Robert W. Zhu, Quan Karen Schiffer, Celia A. Marasco, Wayne A. |
author_sort | Harshbarger, Wayne D. |
collection | PubMed |
description | Broadly neutralizing antibodies (bnAbs) targeting conserved influenza A virus (IAV) hemagglutinin (HA) epitopes can provide valuable information for accelerating universal vaccine designs. Here, we report structural details for heterosubtypic recognition of HA from circulating and emerging IAVs by the human antibody 3I14. Somatic hypermutations play a critical role in shaping the HCDR3, which alone and uniquely among V(H)3-30 derived antibodies, forms contacts with five sub-pockets within the HA-stem hydrophobic groove. 3I14 light-chain interactions are also key for binding HA and contribute a large buried surface area spanning two HA protomers. Comparison of 3I14 to bnAbs from several defined classes provide insights to the bias selection of V(H)3-30 antibodies and reveals that 3I14 represents a novel structural solution within the V(H)3-30 repertoire. The structures reported here improve our understanding of cross-group heterosubtypic binding activity, providing the basis for advancing immunogen designs aimed at eliciting a broadly protective response to IAV. |
format | Online Article Text |
id | pubmed-7835374 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-78353742021-01-29 Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses Harshbarger, Wayne D. Deming, Derrick Lockbaum, Gordon J. Attatippaholkun, Nattapol Kamkaew, Maliwan Hou, Shurong Somasundaran, Mohan Wang, Jennifer P. Finberg, Robert W. Zhu, Quan Karen Schiffer, Celia A. Marasco, Wayne A. Nat Commun Article Broadly neutralizing antibodies (bnAbs) targeting conserved influenza A virus (IAV) hemagglutinin (HA) epitopes can provide valuable information for accelerating universal vaccine designs. Here, we report structural details for heterosubtypic recognition of HA from circulating and emerging IAVs by the human antibody 3I14. Somatic hypermutations play a critical role in shaping the HCDR3, which alone and uniquely among V(H)3-30 derived antibodies, forms contacts with five sub-pockets within the HA-stem hydrophobic groove. 3I14 light-chain interactions are also key for binding HA and contribute a large buried surface area spanning two HA protomers. Comparison of 3I14 to bnAbs from several defined classes provide insights to the bias selection of V(H)3-30 antibodies and reveals that 3I14 represents a novel structural solution within the V(H)3-30 repertoire. The structures reported here improve our understanding of cross-group heterosubtypic binding activity, providing the basis for advancing immunogen designs aimed at eliciting a broadly protective response to IAV. Nature Publishing Group UK 2021-01-25 /pmc/articles/PMC7835374/ /pubmed/33495478 http://dx.doi.org/10.1038/s41467-020-20879-6 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Harshbarger, Wayne D. Deming, Derrick Lockbaum, Gordon J. Attatippaholkun, Nattapol Kamkaew, Maliwan Hou, Shurong Somasundaran, Mohan Wang, Jennifer P. Finberg, Robert W. Zhu, Quan Karen Schiffer, Celia A. Marasco, Wayne A. Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses |
title | Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses |
title_full | Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses |
title_fullStr | Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses |
title_full_unstemmed | Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses |
title_short | Unique structural solution from a V(H)3-30 antibody targeting the hemagglutinin stem of influenza A viruses |
title_sort | unique structural solution from a v(h)3-30 antibody targeting the hemagglutinin stem of influenza a viruses |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7835374/ https://www.ncbi.nlm.nih.gov/pubmed/33495478 http://dx.doi.org/10.1038/s41467-020-20879-6 |
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