An object of the present invention is to provide a novel double-stranded RNA that has high resistance to nuclease and cellular uptake efficiency and that can produce an excellent RNA interference effect. The present invention provides a double-stranded lipid-modified RNA comprising a sense strand having a nucleotide sequence complementary to a target sequence in a target gene, and an antisense strand having a nucleotide sequence complementary to the sense strand, the double-stranded RNA being capable of suppressing the expression of the target gene, and the sense strand having a double-stranded lipid bound directly or via a linker to at least one of the first to sixth nucleotides from the 5' end.
本发明的目的是提供一种新型双链 RNA,它具有很高的抗
核酸酶能力和细胞吸收效率,并能产生极好的 RNA 干扰效果。本发明提供了一种双链脂质修饰的 RNA,包括一条具有与靶
基因中靶序列互补的核苷酸序列的有义链和一条具有与有义链互补的核苷酸序列的反义链,该双链 RNA 能够抑制靶
基因的表达,有义链的 5'端起第一至第六个核苷酸中的至少一个核苷酸直接或通过连接子与双链脂质结合。