| Domain | Name | Category | Type |
| IPR001537 | tRNA/rRNA methyltransferase, SpoU type | Domain | Domain |
| IPR004441 | RNA methyltransferase TrmH family | Family | Family |
| IPR013123 | RNA 2-O ribose methyltransferase, substrate binding | Domain | Domain |
| IPR029026 | tRNA (guanine-N1-)-methyltransferase, N-terminal | Family | Homologous superfamily |
| IPR029028 | Alpha/beta knot methyltransferases | Family | Homologous superfamily |
| IPR029064 | 50S ribosomal protein L30e-like | Family | Homologous superfamily |