Structure and Dynamics of the Human Multi-tRNA Synthetase Complex

Overview

Journal Subcell Biochem

Publisher Springer

Specialty Biochemistry

Date 2022 Sep 23

PMID 36151377

Authors

Myung Hee Kim

Beom Sik Kang

Affiliations

Soon will be listed here.

Abstract

Aminoacyl-tRNA synthetases (ARSs) are essential enzymes that ligate amino acids to their cognate tRNAs during protein synthesis. A growing body of scientific evidence acknowledges that ubiquitously expressed ARSs act as crossover mediators of biological processes, such as immunity and metabolism, beyond translation. In particular, a cytoplasmic multi-tRNA synthetase complex (MSC), which consists of eight ARSs and three ARS-interacting multifunctional proteins in humans, is recognized to be a central player that controls the complexity of biological systems. Although the role of the MSC in biological processes including protein synthesis is still unclear, maintaining the structural integrity of MSC is essential for life. This chapter deals with current knowledge on the structural aspects of the human MSC and its protein components. The main focus is on the regulatory functions of MSC beyond its catalytic activity.

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