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GlyRS_RNA binding domain. This short RNA-binding domain is found at the N-terminus of GlyRS in several higher eukaryote aminoacyl-tRNA synthetases (aaRSs). This domain consists of a helix-turn-helix structure , which is similar to other RNA-binding proteins. It is involved in both protein-RNA interactions by binding tRNA and protein-protein interactions, which are important for the formation of aaRSs into multienzyme complexes.