| Modifier | Substrate | Residue | Sequence | Mechanism/Effect | PMID | Interaction ID |
|---|---|---|---|---|---|---|
| MAPK14 | USP21 | Ser538 | VYNDSRVsPVSENQV | phosphorylation up-regulates activity | 28254948 | SIGNOR-273670 |
| Enzyme | Effect | Phosphosite | Effect | Target | PMID | Interaction ID |
|---|---|---|---|---|---|---|
| MAPK14 | phosphorylation up-regulates → | USP21 PSer538 | phosphorylation up-regulates → | USP21 | 28254948 | SIGNOR-273670 |
| Regulator | Mechanism/Effect | Target | SIGNOR-ID |
|---|---|---|---|
| MAPK14 | phosphorylation → up-regulates activity | USP21 | SIGNOR-273670 |
