NAT10 and cytidine acetylation in mRNA: intersecting paths in development and disease

Area of Science:

• Molecular Biology
• RNA Biology
• Epigenetics

Background:

• N4-acetylcytidine (ac4C) is a prevalent RNA modification.
• The enzyme NAT10 catalyzes ac4C formation.
• ac4C is constitutively present in tRNA and rRNA, but dynamically regulated in mRNA.

Purpose of the Study:

• To synthesize current literature on ac4C function in mRNA.
• To address challenges in deciphering context-dependent ac4C influences on translation.
• To develop a cohesive model for ac4C function in mRNA.

Main Methods:

• Literature synthesis and review.
• Analysis of natural variations in mRNA acetylation across biological contexts (cancer, development, immune response).
• Focus on NAT10 activity and its impact on ac4C dynamics.

Main Results:

• ac4C's presence in mRNA is dynamic and linked to NAT10 levels.
• Challenges exist in isolating ac4C's specific effects on translation due to NAT10's pleiotropic activities.
• Natural variations in acetylation provide insights into ac4C functions.

Conclusions:

• Understanding ac4C's role in mRNA requires addressing its context-dependent influences.
• Recent advances facilitate a more cohesive model of ac4C function.
• Further research into NAT10-mediated acetylation is crucial for elucidating ac4C's impact on cellular processes.