7X8P

Frizzled 2 CRD in complex with pF7_A5 Fab

7X8P の概要

• エントリーDOI: 10.2210/pdb7x8p/pdb
• 分子名称: Frizzled-2, Antibody pF7_A5 Fab, Light chain, Antibody pF7_A5 Fab, Heavy chain, ... (6 entities in total)
• 機能のキーワード: antibody, signaling protein
• 由来する生物種: Homo sapiens (human); 詳細
• タンパク質・核酸の鎖数: 6
• 化学式量合計: 123946.93

構造登録者

Ge, Q.,Wang, Q. (登録日: 2022-03-14, 公開日: 2023-02-01, 最終更新日: 2024-11-06)

主引用文献

Ge, Q.,Teng, M.,Li, X.,Guo, Q.,Tao, Y.
An epitope-directed selection strategy facilitating the identification of Frizzled receptor selective antibodies.
Structure, 31:33-43.e5, 2023

PubMed Abstract: The lack of incorporating epitope information into the selection process makes the conventional antibody screening method less effective in identifying antibodies with desired functions. Here, we developed an epitope-directed antibody selection method by designing a directed library favoring the target epitope and a precise "counter" antigen for clearing irrelevant binders in the library. With this method, we successfully isolated an antibody, pF7_A5, that targets the less conserved region on the FZD2/7 CRD as designed. Guided by the structure of pF7_A5-FZD2, a further round of evolution was conducted together with the "counter" antigen selection strategy, and ultimately, an FZD2-specific antibody and an FZD7-preferred antibody were obtained. Because of targeting the predefined functional site, all these antibodies exhibited the expected modulatory activity on the Wnt pathway. Together, the method developed here will be useful in antibody drug discovery, and the identified FZD antibodies will have clinical potential in FZD-related cancer therapy.

PubMed: 36513066
DOI: 10.1016/j.str.2022.11.009

実験手法

X-RAY DIFFRACTION (2.24 Å)