NOVEL METHOD OF HIGHLY SENSITIVE NUCLEIC ACID ANALYSIS

It is intended to provide a method of highly sensitively analyzing SNPs. More specifically, it is intended to provide an SNP analysis method whereby a large amount of SNPs can be quickly analyzed using a DNA sample in a trace amount. An SNP analysis method by the invader method with the use of a FRET probe having a luminescent dye and a quencher characterized by using, as the luminescent dye in the FRET probe, a rare earth fluorescent complex label made of a rare earth element such as europium or terbium. A composition for controlling fluorescent luminescence which comprises a combination of a specific rare earth fluorescent complex label with a specific fluorescent quencher. A highly sensitive labeling probe characterized by using a rare earth fluorescent complex label as a luminescent dye and a fluorescent quencher label as a quencher in a highly sensitive labeling probe such as a FRET probe and an SNP analysis kit containing the same.