| Domain | Name | Category | Type |
| IPR006073 | GTP binding domain | Domain | Domain |
| IPR012971 | Nucleolar GTP-binding protein 2, N-terminal domain | Domain | Domain |
| IPR023179 | GTP-binding protein, orthogonal bundle domain superfamily | Family | Homologous superfamily |
| IPR024929 | Nucleolar GTP-binding protein 2 | Family | Family |
| IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Family | Homologous superfamily |
| IPR030378 | Circularly permuted (CP)-type guanine nucleotide-binding (G) domain | Domain | Domain |