Biospecific binding reactants labelled with luminescent lanthanide chelates and their use
申请人:WALLAC OY
公开号:EP0770610A1
公开(公告)日:1997-05-02
This invention relates to a detectable molecule comprising a biospecific binding reactant attached to a luminescent lanthanide chelate comprising a lanthanide ion and a chelating ligand of the formula
wherein
-A- is a bivalent aromatic structure selected from the group consisting of
and
One of the two groups G1 or G2 is used for coupling the chelate to a biospecific binding reactant. The lanthanide ion is europium(III), terbium(III), dysprosium (III) or samarium (III).
本发明涉及一种可检测分子,该分子由生物特异性结合反应物和发光镧系元素螯合物组成,发光镧系元素螯合物由镧系元素离子和螯合配体组成,螯合配体的化学式为
其中
-A-为二价芳香族结构,选自由下列组成的组
和
两个基团 G1 或 G2 中的一个用于将螯合物与生物特异性结合反应物偶联。镧系离子为铕(III)、铽(III)、镝(III)或钐(III)。