| Domain | Name | Category | Type |
| IPR001412 | Aminoacyl-tRNA synthetase, class I, conserved site | Site | Conserved site |
| IPR002300 | Aminoacyl-tRNA synthetase, class Ia | Domain | Domain |
| IPR002301 | Isoleucine-tRNA ligase | Family | Family |
| IPR009008 | Valyl/Leucyl/Isoleucyl-tRNA synthetase, editing domain | Family | Homologous superfamily |
| IPR009080 | Aminoacyl-tRNA synthetase, class Ia, anticodon-binding | Family | Homologous superfamily |
| IPR013155 | Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase, anticodon-binding | Domain | Domain |
| IPR014729 | Rossmann-like alpha/beta/alpha sandwich fold | Family | Homologous superfamily |
| IPR023586 | Isoleucine-tRNA ligase, type 2 | Family | Family |
| IPR033709 | Isoleucyl tRNA synthetase type 2, anticodon-binding domain | Domain | Domain |