| Domain | Name | Category | Type |
| IPR000756 | Diacylglycerol kinase, accessory domain | Domain | Domain |
| IPR001206 | Diacylglycerol kinase, catalytic domain | Domain | Domain |
| IPR002048 | EF-hand domain | Domain | Domain |
| IPR002219 | Protein kinase C-like, phorbol ester/diacylglycerol-binding domain | Domain | Domain |
| IPR011992 | EF-hand domain pair | Family | Homologous superfamily |
| IPR016064 | NAD kinase/diacylglycerol kinase-like domain superfamily | Family | Homologous superfamily |
| IPR017438 | Inorganic polyphosphate/ATP-NAD kinase, N-terminal | Family | Homologous superfamily |
| IPR018247 | EF-Hand 1, calcium-binding site | Site | Binding site |
| IPR029477 | Diacylglycerol kinase type I, N-terminal | Domain | Domain |
| IPR037607 | Diacylglycerol kinase | Family | Family |
| IPR038199 | DGK type I, N-terminal domain superfamily | Family | Homologous superfamily |