| Domain | Name | Category | Type |
| IPR000705 | Galactokinase | Family | Family |
| IPR006203 | GHMP kinase, ATP-binding, conserved site | Site | Conserved site |
| IPR006204 | GHMP kinase N-terminal domain | Domain | Domain |
| IPR006206 | Mevalonate/galactokinase | Family | Family |
| IPR013750 | GHMP kinase, C-terminal domain | Domain | Domain |
| IPR014721 | Ribosomal protein S5 domain 2-type fold, subgroup | Family | Homologous superfamily |
| IPR019539 | Galactokinase, N-terminal domain | Domain | Domain |
| IPR019741 | Galactokinase, conserved site | Site | Conserved site |
| IPR020568 | Ribosomal protein S5 domain 2-type fold | Family | Homologous superfamily |
| IPR036554 | GHMP kinase, C-terminal domain superfamily | Family | Homologous superfamily |