New directions for Ψ and m¹A decoding in mRNA: deciphering the stoichiometry and function

Area of Science:

• Molecular Biology
• Genetics
• Biochemistry

Background:

• Epitranscriptomics has rapidly advanced, improving understanding of mRNA metabolism in development and disease.
• Key RNA modifications like pseudouridine (Ψ) and N1-methyladenosine (m1A) are increasingly recognized alongside N6-methyladenosine (m6A).
• These modifications significantly influence RNA metabolism and gene expression.

Purpose of the Study:

• To review the detection and functions of Ψ and m1A modifications in messenger RNA (mRNA).
• To discuss historical discrepancies and future challenges in the study of these epitranscriptomic markers.
• To highlight recent technological advances for stoichiometric detection and functional investigation of mRNA modifications.

Main Methods:

• Transcriptome-wide profiling techniques for initial identification of RNA modifications.
• Advanced sequencing technologies for precise stoichiometric detection of Ψ and m1A.
• Mechanistic investigations to elucidate the functional roles of these mRNA modifications.

Main Results:

• Ψ and m1A modifications are widespread and impact various aspects of RNA metabolism.
• Recent technological advancements allow for more accurate quantification and functional analysis.
• Understanding these modifications is crucial for comprehending gene expression regulation.

Conclusions:

• Ψ and m1A are critical epitranscriptomic markers with significant roles in mRNA processing and function.
• Continued development of sequencing and detection technologies is essential for further research.
• Investigating these modifications offers new avenues for understanding human development and disease.