| Domain | Name | Category | Type |
| IPR000048 | IQ motif, EF-hand binding site | Site | Binding site |
| IPR002048 | EF-hand domain | Domain | Domain |
| IPR004843 | Calcineurin-like phosphoesterase domain, ApaH type | Domain | Domain |
| IPR006186 | Serine/threonine-specific protein phosphatase/bis(5-nucleosyl)-tetraphosphatase | Domain | Domain |
| IPR011992 | EF-hand domain pair | Family | Homologous superfamily |
| IPR012008 | Serine/threonine-protein phosphatase with EF-hands | Family | Family |
| IPR013235 | PPP domain | Domain | Domain |
| IPR018247 | EF-Hand 1, calcium-binding site | Site | Binding site |