- Volume 2 Issue 1
Shot interfering RNA (siRNA) can be used to silence specific gene expression and have many potential therapeutic applications. However, how to design an effective siRNA is still not clear. Highly effective siRNA has sequence-specific properties which are low G/C content, low internal stability at the sense strand 3'-terminus, sense strand base bias(position 1 is G/C, position 19 is /AU). Recently, mRNA secondary structure playsan important role in RNAi. Target site of siRNA in high-ordered structure (i.e hairpin loop, multi loop) or base pair of many hydrogen bonds dramatically reduce function of siRNA mediated gene silencing. Possible off-target effects of siRNA is detecting from BLAST search.