tRNA synthetase: tRNA aminoacylation and beyond

Area of Science:

• Biochemistry
• Molecular Biology
• Genetics

Background:

• Aminoacyl-tRNA synthetases (aaRS) are essential enzymes responsible for the initial step of protein synthesis.
• They accurately attach specific amino acids to their corresponding transfer RNA (tRNA) molecules, ensuring genetic code fidelity.
• Beyond their canonical role, aaRS enzymes possess moonlighting functions impacting diverse cellular pathways.

Purpose of the Study:

• To highlight the multifaceted roles of aminoacyl-tRNA synthetases beyond protein synthesis.
• To explore their involvement in cellular signaling and metabolic pathways.
• To underscore their potential as therapeutic targets for human diseases.

Main Methods:

• Review of existing literature on aminoacyl-tRNA synthetase functions.
• Analysis of evolutionary adaptations and domain incorporation in aaRS.
• Examination of pharmacological studies targeting aaRS.

Main Results:

• aaRS enzymes exhibit diverse non-canonical activities influencing cell signaling and metabolism.
• These enzymes serve as evolutionary scaffolds, potentially driving the emergence of complex organisms.
• aaRS are validated pharmaceutical targets for antibiotic and drug development.

Conclusions:

• Aminoacyl-tRNA synthetases are versatile proteins with critical roles in both fundamental biology and disease.
• Their moonlighting functions present novel avenues for therapeutic intervention.
• Targeting aaRS offers promising strategies for treating a wide spectrum of human ailments.