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| タイトル | Memory B cell repertoire for recognition of evolving SARS-CoV-2 spike. |
|---|---|
| ジャーナル・号・ページ | bioRxiv, Year 2021 |
| 掲載日 | 2021年3月10日 |
著者 | Pei Tong / Avneesh Gautam / Ian Windsor / Meghan Travers / Yuezhou Chen / Nicholas Garcia / Noah B Whiteman / Lindsay G A McKay / Felipe J N Lelis / Shaghayegh Habibi / Yongfei Cai / Linda J Rennick / W Paul Duprex / Kevin R McCarthy / Christy L Lavine / Teng Zuo / Junrui Lin / Adam Zuiani / Jared Feldman / Elizabeth A MacDonald / Blake M Hauser / Anthony Griffths / Michael S Seaman / Aaron G Schmidt / Bing Chen / Donna Neuberg / Goran Bajic / Stephen C Harrison / Duane R Wesemann / ![]() |
| PubMed 要旨 | Memory B cell reserves can generate protective antibodies against repeated SARS-CoV-2 infections, but with an unknown reach from original infection to antigenically drifted variants. We charted ...Memory B cell reserves can generate protective antibodies against repeated SARS-CoV-2 infections, but with an unknown reach from original infection to antigenically drifted variants. We charted memory B cell receptor-encoded monoclonal antibodies (mAbs) from 19 COVID-19 convalescent subjects against SARS-CoV-2 spike (S) and found 7 major mAb competition groups against epitopes recurrently targeted across individuals. Inclusion of published and newly determined structures of mAb-S complexes identified corresponding epitopic regions. Group assignment correlated with cross-CoV-reactivity breadth, neutralization potency, and convergent antibody signatures. mAbs that competed for binding the original S isolate bound differentially to S variants, suggesting the protective importance of otherwise-redundant recognition. The results furnish a global atlas of the S-specific memory B cell repertoire and illustrate properties conferring robustness against emerging SARS-CoV-2 variants. |
リンク | bioRxiv / PubMed:33758863 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 3.8 - 8.0 Å |
| 構造データ | EMDB-24192: SARS-CoV-2 Spike (2P) in complex with C12C9 Fab (RBD local reconstruction) EMDB-24193, PDB-7n64: ![]() EMDB-24196: ![]() EMDB-24197: ![]() EMDB-24198: |
| 化合物 | ![]() ChemComp-NAG: |
| 由来 |
|
キーワード | VIRAL PROTEIN/Immune System / coronavirus / antibody / epitope / VIRAL PROTEIN / VIRAL PROTEIN-Immune System complex |
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