tRNAs as regulators of biological processes.

Area of Science:

• Molecular Biology
• Genetics
• Biochemistry

Background:

• Transfer RNAs (tRNAs) are primarily known as adaptors in protein biosynthesis.
• Emerging evidence suggests tRNAs have non-canonical functions in cellular regulation.

Purpose of the Study:

• To explore the diverse, non-canonical functions of tRNAs and tRNA fragments (tRFs).
• To detail tRNA involvement in cellular processes beyond protein synthesis.

Main Methods:

• Literature review and synthesis of recent research findings.
• Analysis of studies investigating tRNA roles in gene expression, post-translational modifications, and other cellular activities.

Main Results:

• tRNAs are implicated in regulating gene expression in both prokaryotes and eukaryotes.
• Aminoacylated tRNAs serve as substrates for non-ribosomal peptide bonds and protein labeling.
• tRNA fragments (tRFs) are recognized for their regulatory roles in cellular processes.

Conclusions:

• tRNAs possess multifaceted functions extending beyond their traditional role in translation.
• Further research into tRNA and tRFs will uncover new regulatory mechanisms in cell biology.