8ZHD

SARS-CoV-2 spike trimer (6P) in complex with two R1-26 Fabs

これはPDB形式変換不可エントリーです。

8ZHD の概要

• エントリーDOI: 10.2210/pdb8zhd/pdb
• EMDBエントリー: 60099
• 分子名称: Spike glycoprotein,Fibritin,Expression Tag, Heavy chain of R1-26 Fab, Light chain of R1-26 Fab, ... (5 entities in total)
• 機能のキーワード: spike protein, rbd, antibody, fab, viral protein, viral protein-immune system complex, viral protein/immune system
• 由来する生物種: Severe acute respiratory syndrome coronavirus 2; 詳細
• タンパク質・核酸の鎖数: 7
• 化学式量合計: 539696.95

構造登録者

Yan, Q.,Gao, X.,Liu, B.,Hou, R.,He, P.,Li, Z.,Chen, Q.,Wang, J.,He, J.,Chen, L.,Zhao, J.,Xiong, X. (登録日: 2024-05-10, 公開日: 2024-08-21, 最終更新日: 2024-11-06)

主引用文献

Yan, Q.,Gao, X.,Liu, B.,Hou, R.,He, P.,Ma, Y.,Zhang, Y.,Zhang, Y.,Li, Z.,Chen, Q.,Wang, J.,Huang, X.,Liang, H.,Zheng, H.,Yao, Y.,Chen, X.,Niu, X.,He, J.,Chen, L.,Zhao, J.,Xiong, X.
Antibodies utilizing VL6-57 light chains target a convergent cryptic epitope on SARS-CoV-2 spike protein and potentially drive the genesis of Omicron variants.
Nat Commun, 15:7585-7585, 2024

PubMed Abstract: Continued evolution of SARS-CoV-2 generates variants to challenge antibody immunity established by infection and vaccination. A connection between population immunity and genesis of virus variants has long been suggested but its molecular basis remains poorly understood. Here, we identify a class of SARS-CoV-2 neutralizing public antibodies defined by their shared usage of VL6-57 light chains. Although heavy chains of diverse genotypes are utilized, convergent HCDR3 rearrangements have been observed among these public antibodies to cooperate with germline VL6-57 LCDRs to target a convergent epitope defined by RBD residues S371-S373-S375. Antibody repertoire analysis identifies that this class of VL6-57 antibodies is present in SARS-CoV-2-naive individuals and is clonally expanded in most COVID-19 patients. We confirm that Omicron-specific substitutions at S371, S373 and S375 mediate escape of antibodies of the VL6-57 class. These findings support that this class of public antibodies constitutes a potential immune pressure promoting the introduction of S371L/F-S373P-S375F in Omicron variants. The results provide further molecular evidence to support that antigenic evolution of SARS-CoV-2 is driven by antibody mediated population immunity.

PubMed: 39217172
DOI: 10.1038/s41467-024-51770-3

実験手法

ELECTRON MICROSCOPY (3.41 Å)