OLIGONUCLEOTIDE DERIVATIVE, LABELING AGENT, AND USE OF THE LABELING AGENT

摘要

The disclosures of the Specification provide an oligonucleotide derivative suited to practical use, as well as a fluorescent dye cluster and use therefor. The disclosures of the Specification use a labeling agent comprising a plurality of nucleotide derivative units represented by Formula (1) below:
(where, Z represents a nitrogen atom or CH, Y represents an uncondensed aromatic hydrocarbon group or condensed polycyclic hydrocarbon group, X 1 represents O, S or Se, and X 2 represents SH (or S - ), S or Se - , a C 1-4 alkyl or a morpholino group.)