Molecular Glue for RNA: Regulating RNA Structure and Function through Synthetic RNA Binding Molecules

Area of Science:

• Biochemistry
• Molecular Biology
• Chemical Biology

Background:

• Functional RNAs play crucial roles in cellular processes.
• Modulating RNA structure and function is a key therapeutic strategy.
• Small molecules offer precise tools for targeting RNA.

Purpose of the Study:

• To introduce the concept of molecular glues for RNA.
• To investigate the RNA-binding small molecule (Z)-NCTS as a molecular glue.
• To demonstrate the potential of RNA-targeting small molecules for functional regulation.

Main Methods:

• Design and synthesis of RNA-binding small molecules.
• Characterization of small molecule-RNA interactions.
• Assays to evaluate RNA structural changes and functional modulation.
• Application of small molecules to ribozyme systems.

Main Results:

• (Z)-NCTS identified as an RNA-mismatch-binding small molecule recognizing 5'-r(XGG)-3' sequences.
• (Z)-NCTS acts as a molecular glue, inducing proximity of RNA domains.
• Higher-order RNA structural changes and ribozyme activation were observed.
• Demonstrated successful modulation of RNA function via small molecule intervention.

Conclusions:

• The concept of molecular glues for RNA is established.
• (Z)-NCTS effectively alters RNA structure and function.
• Small molecules targeting functional RNAs represent a promising therapeutic avenue.