Interconnections between m⁶A RNA modification, RNA structure, and protein-RNA complex assembly

Area of Science:

• Molecular Biology
• Biochemistry
• RNA Biology

Background:

• Protein-RNA complexes are essential cellular machinery, with RNA structure critical for their formation.
• RNA modifications, like N6-methyladenosine (m6A), alter RNA chemistry, folding, and protein interactions.
• m6A is the most prevalent mRNA modification, influencing RNA structure and protein binding.

Purpose of the Study:

• To review the mechanisms of m6A modification by the METTL3/14 complex.
• To discuss how m6A affects RNA folding and protein-RNA interactions.
• To provide quantitative insights into these processes.

Main Methods:

• Review of existing literature on m6A modification.
• Analysis of mechanisms for METTL3/14 complex targeting.
• Examination of m6A's impact on RNA folding kinetics and protein binding affinity.

Main Results:

• The METTL3/14 complex is targeted to specific RNA sites via protein-RNA and other interactions for co-transcriptional modification.
• m6A modification alters RNA folding pathways and kinetics.
• m6A directly impacts the affinity and specificity of protein-RNA interactions.

Conclusions:

• m6A is a key regulator of RNA structure and protein binding.
• Understanding m6A mechanisms is crucial for deciphering gene regulation and RNA-based therapeutics.
• Quantitative data is essential for a comprehensive understanding of m6A's functional impact.