abstract |
(57) [Problem] To provide a fluorescent nucleotide useful for efficient labeling of a nucleic acid. SOLUTION: The fluorescent nucleotide represented by the formula: ABC. [In the formula, A represents a residue of a natural or synthetic nucleotide, oligonucleotide, polynucleotide or a derivative thereof, and binds to B at a base moiety in the residue, and B represents a divalent linking group or a single bond. And C represents a monovalent group derived from a fluorescent dye having 0 to 1 sulfonic acid group or phosphoric acid group in the molecule. ] |