The present invention relates to tri-functional crosslinking reagents carrying (i) a ligand-reactive group for conjugation to a ligand of interest having at least one binding site on a target glycoprotein receptor, (ii) a hydrazone group for the capturing of oxidized receptor-glycoproteins and (iii) an affinity group selected from azides and aklynes for the detection, isolation and purification of captured glycoproteins; as well as their manufacturing. The invention further provides for improved methods of detecting, identifying and characterizing interactions between ligands and their corresponding target glycoproteins on living cells and in biological fluids. The invention further provides for new uses of catalysts in such methods.
本发明涉及携带(i)与感兴趣的
配体结合的
配体反应性基团,该
配体在目标糖蛋白受体上至少具有一个结合位点,(ii)用于捕获氧化受体-糖蛋白的
缩醛基团,以及(iii)从
叠氮化物和
炔烃中选择的亲和基团,用于检测、分离和纯化捕获的糖蛋白的三功能交联试剂;以及它们的制造。本发明还提供了改进的方法,用于检测、识别和表征
配体与其相应目标糖蛋白在活细胞和
生物体液中的相互作用。本发明还提供了在这些方法中使用催化剂的新用途。