| Modifier | Substrate | Residue | Sequence | Mechanism/Effect | PMID | Interaction ID |
|---|---|---|---|---|---|---|
| TGFBR1 | SMAD3 | Ser423 | SPSIRCSsVS | phosphorylation up-regulates activity | 19458083 | SIGNOR-235385 |
| Enzyme | Effect | Phosphosite | Effect | Target | PMID | Interaction ID |
|---|---|---|---|---|---|---|
| TGFBR1 | phosphorylation up-regulates → | SMAD3 PSer423 | phosphorylation up-regulates → | SMAD3 | 19458083 | SIGNOR-235385 |
| Regulator | Mechanism/Effect | Target | SIGNOR-ID |
|---|---|---|---|
| TGFBR1 | phosphorylation → up-regulates activity | SMAD3 | SIGNOR-235385 |