Towards Molecular Mechanism in Long Non-coding RNAs: Linking Structure and Function.

Area of Science:

• Molecular biology
• Structural biology
• RNA biology

Background:

• Long non-coding RNAs (lncRNAs) are vital in cellular processes and disease, yet their structural characterization remains limited.
• Existing research has explored lncRNA functions but has not extensively investigated their three-dimensional structures.

Purpose of the Study:

• To review functional and structural studies of lncRNAs.
• To explore established structural biology techniques applicable to RNA.
• To propose cryo-electron microscopy (cryo-EM) as a key method for future lncRNA structural investigations.

Main Methods:

• Review of existing literature on lncRNA functional and structural studies.
• Examination of techniques such as chemical probing, NMR, SAXS, X-ray crystallography, and cryo-EM for RNA structure determination.
• Focus on the application and potential of cryo-EM for lncRNAs.

Main Results:

• Limited progress in lncRNA structural studies despite their functional importance.
• Established RNA structure determination methods provide a foundation for lncRNA research.
• Cryo-EM emerges as a promising technique for high-resolution lncRNA structure elucidation.

Conclusions:

• Advancing lncRNA structural biology is essential for a comprehensive understanding of their cellular roles.
• Structure-function relationships in lncRNAs hold significant potential for future discoveries.
• Cryo-EM is poised to be a transformative tool in the field of lncRNA structural biology.