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).
4-α-Amino acid substituted naphthalimides can be photocleaved at the C–N bond between the 4-amino and the amino acid residue under visible light irradiation, releasing a fluorophore, 4-aminonaphthalimide.