RNA-induced silencing complex (RISC)

The RNA-induced silencing complex (RISC) is a group of proteins and RNA that helps regulate gene expression in cells. It works by using small RNA molecules, like microRNAs or siRNAs, to find and bind to specific messenger RNA (mRNA) strands, which carry instructions for making proteins. Once bound, the RISC can either cut the mRNA, preventing it from being used to make proteins, or block its translation. This process is crucial for controlling various biological functions, developing organisms, and defending against viruses, making RISC an important player in the intricate machinery of life.