ERI1 (Exoribonuclease 1): ERI1 is a crucial enzyme involved in RNA interference and the regulation of small RNA stability. It plays an essential role in degrading RNA duplexes and resolving RNA-induced silencing complexes (RISCs), which are key to gene silencing. ERI1’s function influences gene expression and cellular defense against viruses. Research on ERI1 investigates its role in post-transcriptional regulation and its potential importance in antiviral responses and cancer.