| Domain | Name | Category | Type |
| IPR002504 | NAD kinase | Family | Family |
| IPR016064 | NAD kinase/diacylglycerol kinase-like domain superfamily | Family | Homologous superfamily |
| IPR017437 | ATP-NAD kinase, PpnK-type, C-terminal | Family | Homologous superfamily |
| IPR017438 | Inorganic polyphosphate/ATP-NAD kinase, N-terminal | Family | Homologous superfamily |