| Domain | Name | Category | Type |
| IPR001282 | Glucose-6-phosphate dehydrogenase | Family | Family |
| IPR005900 | 6-phosphogluconolactonase, DevB-type | Domain | Domain |
| IPR006148 | Glucosamine/galactosamine-6-phosphate isomerase | Domain | Domain |
| IPR019796 | Glucose-6-phosphate dehydrogenase, active site | Site | Active site |
| IPR022674 | Glucose-6-phosphate dehydrogenase, NAD-binding | Domain | Domain |
| IPR022675 | Glucose-6-phosphate dehydrogenase, C-terminal | Domain | Domain |
| IPR036291 | NAD(P)-binding domain superfamily | Family | Homologous superfamily |
| IPR037171 | NagB/RpiA transferase-like | Family | Homologous superfamily |