Haimei Wei; Tianyang Zhang; Yangfeng Li; Gong Zhang; Yizhou Li
Chem. Asian J., 2023, e202300652
https://doi.org/10.1002/asia.202300652

Abstract

Covalent crosslinking probes have arisen as efficient toolkits to capture and elucidate biomolecular interaction networks. Exploiting the potential of crosslinking in DNA-encoded chemical library (DEL) selection methods significantly boosted bioactive ligand discovery in complex physiological contexts. Herein, we incorporated o-nitrobenzyl alcohol (o-NBA) as a photo-activated lysine-selective crosslinker into divergent DEL formats and achieved covalent capture of ligand-target interactions featuring improved crosslinking efficiency and site specificity. In addition, covalent DEL selection was realized with the modularly designed o-NBA-functionalized mock libraries.