Glutathione S-transferase C-terminal-like, alpha helical domain of bifunctional Glutamyl-Prolyl-tRNA synthetase
Glutathione S-transferase (GST) C-terminal domain family, bifunctional GluRS-Prolyl-tRNA synthetase (GluProRS) subfamily; This model characterizes the GST_C-like domain found in the N-terminal region of GluProRS from higher eukaryotes. Aminoacyl-tRNA synthetases (aaRSs) comprise a family of enzymes that catalyze the coupling of amino acids with their matching tRNAs. This involves the formation of an aminoacyl adenylate using ATP, followed by the transfer of the activated amino acid to the 3'-adenosine moiety of the tRNA. AaRSs may also be involved in translational and transcriptional regulation, as well as in tRNA processing. The GST_C-like domain of GluProRS may be involved in protein-protein interactions, mediating the formation of the multi-aaRS complex in higher eukaryotes. The multi-aaRS complex acts as a molecular hub for protein synthesis. AaRSs from prokaryotes, which are active as dimers, do not contain this GST_C-like domain.
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