The study investigates the substrate selectivity of the human RNA m5C methyltransferase NSUN2, revealing its interaction with RNA substrates and the critical role of RNA structure in facilitating methylation. Using high-resolution cryo-EM, the research provides insights into the molecular mechanisms underlying NSUN2's enzymatic activity, which has implications for understanding its role in diseases and potential therapeutic targeting.
The research on the human RNA m5C methyltransferase NSUN2 provides insights into its substrate specificity and mechanism, particularly identifying RNA duplexes as crucial for m5C site recognition. This understanding of NSUN2's interaction with RNA substrates opens up potential therapeutic avenues for targeting NSUN2-dependent methylation in various diseases, including cancer and neurological disorders. For a professional tracking scientific breakthroughs, this study suggests promising directions for developing treatments targeting RNA modifications.