4D9L

Fab structure of anti-HIV-1 gp120 V2 mAb 697

4D9L の概要

• エントリーDOI: 10.2210/pdb4d9l/pdb
• 分子名称: Light chain of Fab fragment of anti-HIV1 gp120 V2 mAb 697, Heavy chain of Fab fragment of anti-HIV1 gp120 V2 mAb 697 (3 entities in total)
• 機能のキーワード: ig, antibody, hiv-1 gp120, immune system
• 由来する生物種: Homo sapiens (human); 詳細
• タンパク質・核酸の鎖数: 8
• 化学式量合計: 185350.21

構造登録者

Pan, R.M.,Kong, X.P. (登録日: 2012-01-11, 公開日: 2012-03-21, 最終更新日: 2024-11-06)

主引用文献

Gorny, M.K.,Pan, R.,Williams, C.,Wang, X.H.,Volsky, B.,O'Neal, T.,Spurrier, B.,Sampson, J.M.,Li, L.,Seaman, M.S.,Kong, X.P.,Zolla-Pazner, S.
Functional and immunochemical cross-reactivity of V2-specific monoclonal antibodies from HIV-1-infected individuals.
Virology, 427:198-207, 2012

PubMed Abstract: The recent analysis of the first successful RV144 vaccine trial revealed that a high titer of plasma anti-V2 antibodies (Abs) correlated with a decreased risk of HIV-1 infection in vaccine recipients. To understand the mechanism of immune correlates, we studied seven anti-V2 monoclonal Abs (mAbs) developed from HIV-1 infected individuals. The V2 mAbs target conserved epitopes, including the binding site for α4β7 integrin, and are broadly cross-reactive with various gp120 proteins. Preferential usage of the VH1-69 gene by V2 mAbs may depend on selection by the same antigenic structure. Six of seven V2 mAbs weakly neutralized four to eight of the 41 pseudoviruses tested and resistance to neutralization was correlated with longer V2 domains. The data suggest the presence of shared, conserved structural elements in the V2 loop, and these can be used in the design of vaccine immunogens inducing broadly reactive Abs with anti-viral activities.

PubMed: 22402248
DOI: 10.1016/j.virol.2012.02.003

実験手法

X-RAY DIFFRACTION (2.485 Å)