Figure 8. Schematic illustration of how PRMT5 regulates Wt1 mRNA translation.
(A) As an ITAF, HnRNPA1 binds to Wt1 mRNA and inhibits the internal ribosome entry site (IRES)-dependent translation of Wt1. (B) PRMT5 catalyzes symmetric methylation of HnRNPA1, which suppresses the ITAF activity of HnRNPA1 and promotes the translation of Wt1 mRNA. R: arginine. Me: methylation.