| EC:1.1.1.18 Myo-inositol 2-dehydrogenase. | TG | PF | CP | HS |
| EC:1.13.99.1 Inositol oxygenase. | TG | PF | CP | HS |
| EC:2.1.1.39 Inositol 3-methyltransferase. | TG | PF | CP | HS |
| EC:2.1.1.40 Inositol 1-methyltransferase. | TG | PF | CP | HS |
| EC:2.7.1.64 Inositol 3-kinase. | TG | PF | CP | HS |
| EC:2.7.1.67 1-phosphatidylinositol 4-kinase. | TG | PF | CP | HS |
| EC:2.7.1.68 1-phosphatidylinositol-4-phosphate 5-kinase. | TG | PF | CP | HS |
| EC:2.7.1.127 Inositol-trisphosphate 3-kinase. | TG | PF | CP | HS |
| EC:2.7.1.134 Inositol-tetrakisphosphate 1-kinase. | TG | PF | CP | HS |
| EC:2.7.1.137 Phosphatidylinositol 3-kinase. | TG | PF | CP | HS |
| EC:2.7.1.140 1D-myo-inositol-tetrakisphosphate 5-kinase. | TG | PF | CP | HS |
| EC:2.7.1.149 1-phosphatidylinositol-5-phosphate 4-kinase. | TG | PF | CP | HS |
| EC:2.7.1.151 Inositol-polyphosphate multikinase. | TG | PF | CP | HS |
| EC:2.7.1.153 Phosphatidylinositol-4,5-bisphosphate 3-kinase. | TG | PF | CP | HS |
| EC:2.7.1.- | TG | PF | CP | HS |
| EC:3.1.3.8 3-phytase. | TG | PF | CP | HS |
| EC:3.1.3.25 Inositol-1(or 4)-monophosphatase. | TG | PF | CP | HS |
| EC:3.1.3.26 4-phytase. | TG | PF | CP | HS |
| EC:3.1.3.36 Phosphoinositide 5-phosphatase. | TG | PF | CP | HS |
| EC:3.1.3.56 Inositol-polyphosphate 5-phosphatase. | TG | PF | CP | HS |
| EC:3.1.3.57 Inositol-1,4-bisphosphate 1-phosphatase. | TG | PF | CP | HS |
| EC:3.1.3.62 Multiple inositol-polyphosphate phosphatase. | TG | PF | CP | HS |
| EC:3.1.3.64 Phosphatidylinositol-3-phosphatase. | TG | PF | CP | HS |
| EC:3.1.3.66 Phosphatidylinositol-3,4-bisphosphate 4-phosphatase. | TG | PF | CP | HS |
| EC:3.1.3.67 Phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase. | TG | PF | CP | HS |
| EC:3.1.4.3 Phospholipase C. | TG | PF | CP | HS |
| EC:3.1.4.11 Phosphoinositide phospholipase C. | TG | PF | CP | HS |
| EC:4.2.1.44 Myo-inosose-2 dehydratase. | TG | PF | CP | HS |
| EC:4.6.1.13 Phosphatidylinositol diacylglycerol-lyase. | TG | PF | CP | HS |
| EC:5.5.1.4 Inositol-3-phosphate synthase. | TG | PF | CP | HS |