A naturally isolated cell-permeable fungal resorcylic lactone that acts as a selective and highly potent inhibitor against the MAPKKK TAK1 activity (IC50 = 8 nM) in an ATP-competitive and irreversible manner, while inhibiting MEK1 (IC50 = 411 nM) and three other MAPKKKs (IC50 ≥268 nM against MEKK1, ASK1, and MEKK4) only at much higher concentrations. Shown to inhibit IL-1-induced/TAK1-mediated, but not H2O2-induced/TAK1-independent, JNK and p38 phosphorylation in 293 cells. (5Z)-Zeaenol, Curvularia sp. (Cat. No. 499609) may serve as a negative control.
| Product information | |||
|---|---|---|---|
| Form | White solid | ||
| Molar mass | 362.4 | ||
| Protect from Light | Yes | ||
| Packaged under inert gas | Yes | ||
| Purity | ≥97% by HPLC | ||
| Solubility | DMSO or EtOH | ||
| Chemical formula | C19H22O7 | ||
| CAS number | 66018-38-0 | ||
| Store and ship information | |||
|---|---|---|---|
| Storage | -20°C | ||
| Ship |
Shipped with Blue Ice or with Dry Ice
Standard Handling |
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| Safety information | |||
|---|---|---|---|
| S Phrase |
S: 22-24/25-36/37/39 Do not breathe dust. |
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