| Domain | Name | Category | Type |
| IPR006222 | Aminomethyltransferase, folate-binding domain | Domain | Domain |
| IPR006223 | Glycine cleavage system T protein | Family | Family |
| IPR013977 | Glycine cleavage T-protein, C-terminal barrel domain | Domain | Domain |
| IPR027266 | GTP-binding protein TrmE/Glycine cleavage system T protein, domain 1 | Family | Homologous superfamily |
| IPR028896 | Aminomethyltransferase-like | Family | Family |
| IPR029043 | Glycine cleavage T-protein/YgfZ, C-terminal | Family | Homologous superfamily |