[EN] METHOD FOR PROTEIN PURIFICATION AND LABELING BASED ON A CHEMOSELECTIVE REACTION<br/>[FR] PROCÉDÉ POUR LA PURIFICATION DE PROTÉINES ET MARQUAGE BASÉ SUR UNE RÉACTION CHIMIOSÉLECTIVE
申请人:COVALYS BIOSCIENCES AG
公开号:WO2006021553A1
公开(公告)日:2006-03-02
The present invention relates to methods and reagents for labeling a target compound and a chemoselective reaction that simultaneously cleaves and ligates different labels to a target compound. Such reagents are phosphines of formula (1) wherein A is a group that specifically binds to or reacts with a binding partner B comprising a target protein of interest, R1 and R3 are linkers, R2 is an electrophilic functional group, X, Y and Z are aryl or another group, L1 is a label or another group, and R3 is bound either to X or to Z, and azides of formula (2), N3-R4-L2 (2), wherein L2 is a label or another group and R4 is a linker.
本发明涉及用于标记目标化合物的方法和试剂,以及同时裂解和连接不同标记到目标化合物的化学选择性反应。这些试剂是具有如下式(1)的膦化合物,其中A是一个特异性结合或与结合伙伴B反应的基团,B包括感兴趣的靶蛋白,R1和R3是连接物,R2是亲电性官能团,X、Y和Z是芳基或其他基团,L1是一个标记或其他基团,R3要么与X结合,要么与Z结合,以及具有如下式(2)的叠氮化合物,N3-R4-L2(2),其中L2是一个标记或其他基团,R4是一个连接物。