Application of a lanthanide fluorescent chelate label for detection of single-nucleotide mutations with peptide nucleic acid probes.

Abstract excerpt

We developed the approach to detect single-nucleotide mutation with peptide nucleic acid (PNA) probes and time-resolved fluorometry using a fluorescence lanthanide chelate label, {2,2',2'',2'''-{4'-{[(4,6-dichloro-1,3,5-triazin-2-yl)amino]biphenyl-4-yl}-2,2': 6',2''-terpyridine-6,6''-diyl}bis(methylenenitrilo)}tetrakis(acetato)}europium(III) (DTBTA-Eu3+). Compared with DNA probes, PNA probes showed lower mismatch...

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