8TCO

HCMV Trimer in complex with CS2it1p2_F7K Fab and CS4tt1p1_E3K Fab

8TCO の概要

• エントリーDOI: 10.2210/pdb8tco/pdb
• EMDBエントリー: 41156 41157 41158 41160 41161
• 分子名称: Envelope glycoprotein H, 2-acetamido-2-deoxy-beta-D-glucopyranose, Envelope glycoprotein L, ... (10 entities in total)
• 機能のキーワード: virus, glycoprotein, antibody, viral protein-immune system complex, viral protein/immune system
• 由来する生物種: Human betaherpesvirus 5; 詳細
• タンパク質・核酸の鎖数: 7
• 化学式量合計: 269731.10

構造登録者

Goldsmith, J.A.,McLellan, J.S. (登録日: 2023-07-02, 公開日: 2023-08-09, 最終更新日: 2024-10-23)

主引用文献

Zehner, M.,Alt, M.,Ashurov, A.,Goldsmith, J.A.,Spies, R.,Weiler, N.,Lerma, J.,Gieselmann, L.,Stohr, D.,Gruell, H.,Schultz, E.P.,Kreer, C.,Schlachter, L.,Janicki, H.,Laib Sampaio, K.,Stegmann, C.,Nemetchek, M.D.,Dahling, S.,Ullrich, L.,Dittmer, U.,Witzke, O.,Koch, M.,Ryckman, B.J.,Lotfi, R.,McLellan, J.S.,Krawczyk, A.,Sinzger, C.,Klein, F.
Single-cell analysis of memory B cells from top neutralizers reveals multiple sites of vulnerability within HCMV Trimer and Pentamer.
Immunity, 56:2602-2620.e10, 2023

PubMed Abstract: Human cytomegalovirus (HCMV) can cause severe diseases in fetuses, newborns, and immunocompromised individuals. Currently, no vaccines are approved, and treatment options are limited. Here, we analyzed the human B cell response of four HCMV top neutralizers from a cohort of 9,000 individuals. By single-cell analyses of memory B cells targeting the pentameric and trimeric HCMV surface complexes, we identified vulnerable sites on the shared gH/gL subunits as well as complex-specific subunits UL and gO. Using high-resolution cryogenic electron microscopy, we revealed the structural basis of the neutralization mechanisms of antibodies targeting various binding sites. Moreover, we identified highly potent antibodies that neutralized a broad spectrum of HCMV strains, including primary clinical isolates, that outperform known antibodies used in clinical trials. Our study provides a deep understanding of the mechanisms of HCMV neutralization and identifies promising antibody candidates to prevent and treat HCMV infection.

PubMed: 37967532
DOI: 10.1016/j.immuni.2023.10.009

実験手法

ELECTRON MICROSCOPY (2.8 Å)