| IPR015433 | Phosphatidylinositol kinase | Family |
| IPR016024 | Armadillo-type fold | Homologous Superfamily |
| IPR037703 | PI3Kdelta, catalytic domain | Domain |
| IPR002420 | C2 phosphatidylinositol 3-kinase-type domain | Domain |
| IPR018936 | Phosphatidylinositol 3/4-kinase, conserved site | Conserved Site |
| IPR000403 | Phosphatidylinositol 3-/4-kinase, catalytic domain | Domain |
| IPR001263 | Phosphoinositide 3-kinase, accessory (PIK) domain | Domain |
| IPR042236 | Phosphoinositide 3-kinase, accessory (PIK) domain superfamily | Homologous Superfamily |
| IPR036940 | Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily | Homologous Superfamily |
| IPR003113 | Phosphatidylinositol 3-kinase, adaptor-binding domain | Domain |
| IPR011009 | Protein kinase-like domain superfamily | Homologous Superfamily |
| IPR000341 | Phosphatidylinositol 3-kinase Ras-binding (PI3K RBD) domain | Domain |
| IPR035892 | C2 domain superfamily | Homologous Superfamily |
| IPR029071 | Ubiquitin-like domain superfamily | Homologous Superfamily |
| IPR036860 | SH2 domain superfamily | Homologous Superfamily |
| IPR000980 | SH2 domain | Domain |
| IPR036028 | SH3-like domain superfamily | Homologous Superfamily |
| IPR008936 | Rho GTPase activation protein | Homologous Superfamily |
| IPR035020 | PI3K p85 subunit, C-terminal SH2 domain | Domain |
| IPR035591 | Phosphatidylinositol 3-kinase regulatory subunit alpha, SH3 domain | Domain |
| IPR000198 | Rho GTPase-activating protein domain | Domain |
| IPR032498 | PI3K regulatory subunit p85-related , inter-SH2 domain | Domain |
| IPR001452 | SH3 domain | Domain |
| IPR035022 | PI3K p85 subunit, N-terminal SH2 domain | Domain |
| IPR044124 | PIK3R1, inter-SH2 domain | Domain |