1. 寡核苷酸
  2. 小干扰RNA

siRNAs  (小干扰RNA)

siRNAs(小干扰 RNA)是短片段的外源性双链 RNA(dsRNA)(20-25 个核苷酸),其能够触发RNA干扰(RNAi)途径。siRNA进入细胞后发生解链,正义链被降解的同时反义链与各种蛋白质成分形成RNA诱导沉默复合物(RISC)。RISC中保留的反义链与靶基因mRNA特异性互补。同时,RISC具有核酸酶活性,能够切割并降解靶基因mRNA,从而抑制靶基因的表达。而siRNA和靶基因序列的不完全互补会导致 mRNA 翻译抑制。


siRNA和套装定制服务

siRNAs (small interfering RNAs) are small exogenous double-stranded RNA (dsRNA) (20-25 nucleotides), which trigger the RNA interference (RNAi) pathway. The short dsRNA unwinds and the sense strand is degraded. Antisense strand forms RNA induced silencing complex (RISC) with various protein components. The antisense strand retained in RISC is specifically complementary to the target gene mRNA. Meanwhile, RISC has nuclease activity, which can cut and degrade the target gene mRNA, and inhibit the expression of target gene. Incomplete complementarity results in mRNA translation inhibition.


siRNA Synthesis Services

siRNAs (29553):

Cat. No. Product Name CAS No. Purity Chemical Structure