Figure 3. The miRNA silencing pathway.
Transcription and pri-miRNA processing in the nucleus (large circle) are depicted, as well as miRISC assembly and silencing of target mRNAs in the cytoplasm. An interaction that results in activation is denoted by a positive symbol (+); whereas a negative symbol (−) denotes inhibition. Bottom, a legend of what the symbols represent are provided (inset box). A detailed description of the pathway can be found in the text.
