The present invention provides a single-stranded nucleic acid molecule having a delivery function and capable of inhibiting expression of a target gene. The single-stranded nucleic acid molecule of the present invention is a single-stranded nucleic acid molecule composed of a region (Xc), a linker region (Lx) and a region (X), wherein said region (Xc) is complementary to said region (X), at least one of said region (X) and said region (Xc) contains an expression inhibitory sequence that inhibits expression of the target gene, and a bio-related substance having a delivery function is bonded to at least one selected from the group consisting of the 5′-terminus, the 3′-terminus, and said linker region (Lx).
本发明提供了一种具有递送功能并能抑制靶
基因表达的单链核酸分子。本发明的单链核酸分子是由区域(Xc)、连接区(Lx)和区域(X)组成的单链核酸分子,其中所述区域(Xc)与所述区域(X)互补、所述区域(X)和所述区域(Xc)中至少有一个包含表达抑制序列,可抑制目的
基因的表达,具有递送功能的
生物相关物质与至少一种选自5′-末端、3′-末端和所述连接区(Lx)的物质结合。