| Domain | Name | Category | Type |
| IPR002204 | 3-hydroxyisobutyrate dehydrogenase-related, conserved site | Site | Conserved site |
| IPR006115 | 6-phosphogluconate dehydrogenase, NADP-binding | Domain | Domain |
| IPR008927 | 6-phosphogluconate dehydrogenase-like, C-terminal domain superfamily | Family | Homologous superfamily |
| IPR011548 | 3-hydroxyisobutyrate dehydrogenase | Family | Family |
| IPR013328 | 6-phosphogluconate dehydrogenase, domain 2 | Family | Homologous superfamily |
| IPR015815 | 3-hydroxyisobutyrate dehydrogenase-related | Family | Family |
| IPR029154 | 3-hydroxyisobutyrate dehydrogenase, NAD-binding domain | Domain | Domain |
| IPR036291 | NAD(P)-binding domain superfamily | Family | Homologous superfamily |