The present invention provides a double-stranded polynucleotide having a sense strand polynucleotide consisting of a nucleotide sequence complementary to a target sequence in a target gene, and an antisense strand polynucleotide having a nucleotide sequence complementary to the sense strand polynucleotide, wherein an aryl or heteroaryl compound is bound to a phosphate group at the 5'-end of the antisense strand polynucleotide.
本发明提供了一种双链多核苷酸,该双链多核苷酸具有由与靶
基因中的靶序列互补的核苷酸序列组成的有义链多核苷酸,以及具有与有义链多核苷酸互补的核苷酸序列的反义链多核苷酸,其中芳基或杂芳基化合物与反义链多核苷酸 5'-端的
磷酸基团结合。