+検索条件
-Structure paper
| タイトル | Concerted deletions eliminate a neutralizing supersite in SARS-CoV-2 BA.2.87.1 spike. |
|---|---|
| ジャーナル・号・ページ | Structure, Vol. 32, Issue 10, Page 1594-11602.e6, Year 2024 |
| 掲載日 | 2024年10月3日 |
著者 | Helen M E Duyvesteyn / Aiste Dijokaite-Guraliuc / Chang Liu / Piyada Supasa / Barbara Kronsteiner / Katie Jeffery / Lizzie Stafford / Paul Klenerman / Susanna J Dunachie / / Juthathip Mongkolsapaya / Elizabeth E Fry / Jingshan Ren / David I Stuart / Gavin R Screaton / ![]() |
| PubMed 要旨 | BA.2.87.1 represents a major shift in the BA.2 lineage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is unusual in having two lengthy deletions of polypeptide in the spike (S) ...BA.2.87.1 represents a major shift in the BA.2 lineage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is unusual in having two lengthy deletions of polypeptide in the spike (S) protein, one of which removes a beta-strand. Here we investigate its neutralization by a variety of sera from infected and vaccinated individuals and determine its spike (S) ectodomain structure. The BA.2.87.1 receptor binding domain (RBD) is structurally conserved and the RBDs are tightly packed in an "all-down" conformation with a small rotation relative to the trimer axis as compared to the closest previously observed conformation. The N-terminal domain (NTD) maintains a remarkably similar structure overall; however, the rearrangements resulting from the deletions essentially destroy the so-called supersite epitope and eliminate one glycan site, while a mutation creates an additional glycan site, effectively shielding another NTD epitope. BA.2.87.1 is relatively easily neutralized but acquisition of additional mutations in the RBD could increase antibody escape allowing it to become a dominant sub-lineage. |
リンク | Structure / PubMed:39173622 |
| 手法 | EM (単粒子) |
| 解像度 | 2.8 Å |
| 構造データ | EMDB-50263, PDB-9f9y: |
| 化合物 | ![]() ChemComp-NAG: |
| 由来 |
|
キーワード | VIRAL PROTEIN / immune system / SARS-CoV-2 / RBD / Spike / glycoprotein / BA.2.87.1 / receptor / coronavirus-2 / N-terminal domain / Supersite |
ムービー
コントローラー
構造ビューア
万見文献について



著者

リンク



キーワード