| Modifier | Substrate | Residue | Sequence | Mechanism/Effect | PMID | Interaction ID |
|---|---|---|---|---|---|---|
| PKA | PIK3R1 | Ser83 | YIGRKKIsPPTPKPR | phosphorylation up-regulates activity | 21743495 | SIGNOR-276343 |
| Enzyme | Effect | Phosphosite | Effect | Target | PMID | Interaction ID |
|---|---|---|---|---|---|---|
| PKA | phosphorylation up-regulates → | PIK3R1 PSer83 | phosphorylation up-regulates → | PIK3R1 | 21743495 | SIGNOR-276343 |
| Regulator | Mechanism/Effect | Target | SIGNOR-ID |
|---|---|---|---|
| PKA | phosphorylation → up-regulates activity | PIK3R1 | SIGNOR-276343 |