NUCLEIC ACID DETECTION METHOD AND OLIGONUCLEOTIDE PROBE

A method of detecting a target sequence is provided, the method comprising: hybridizing an oligonucleotide probe with a nucleic acid present in a test sample, wherein the oligonucleotide probe has a hybridization sequence with respect to a target sequence of the nucleic acid and has at least one covalent bonding group that is crosslinkable with a target base in the target sequence by light irradiation, thereby forming an authentic hybridization product; irradiating light to the test sample after the hybridizing, wherein the covalent bonding group and the target sequence are crosslinked, thereby forming the authentic cross-liked hybridization product having a crosslinked structure; and denaturating the test sample by applying a denaturating condition in which the authentic crosslinked hybridization product is able to be maintained and a non-specific hybridization product is able to be dissociated and separating the oligonucleotide probe derived from the non-specific hybridization product.