This model represents the threonyl-tRNA synthetase found in most organisms. This protein is a class II tRNA synthetase, and is recognized by the pfam model tRNA-synt_2b. Note that B. subtilis has closely related isozymes thrS and thrZ. The N-terminal regions are quite dissimilar between archaeal and eubacterial forms, while some eukaryotic forms are missing sequence there altogether. . [Protein synthesis, tRNA aminoacylation]
Jiyao W et al.(2023). "The conserved domain database in 2023.",