| Domain | Name | Category | Type |
| IPR001278 | Arginine-tRNA ligase | Family | Family |
| IPR001412 | Aminoacyl-tRNA synthetase, class I, conserved site | Site | Conserved site |
| IPR005148 | Arginyl tRNA synthetase N-terminal domain | Domain | Domain |
| IPR008909 | DALR anticodon binding | Domain | Domain |
| IPR009080 | Aminoacyl-tRNA synthetase, class Ia, anticodon-binding | Family | Homologous superfamily |
| IPR014729 | Rossmann-like alpha/beta/alpha sandwich fold | Family | Homologous superfamily |
| IPR035684 | Arginyl-tRNA synthetase, catalytic core domain | Domain | Domain |
| IPR036695 | Arginyl tRNA synthetase N-terminal domain superfamily | Family | Homologous superfamily |