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. 2019 May 2;14:3111–3128. doi: 10.2147/IJN.S200253

Figure 1.

Figure 1

Mechanism of action of siRNA molecules. SiRNA duplexes are incorporated in the RNA-induced silencing complex (RISC). Then, siRNA are unwinded and the strand with lower thermodynamic stability at its 5’end remains in the complex and guides it to the complementary mRNA. The target mRNA is then cleaved and protein expression is abolished or reduced.