Okadaic acid is a potent inhibitor of protein phosphatase 1/2A with IC50 values of 19 nM and 0.2 nM for protein phosphatase 1 and protein phosphatase 2A, respectively. Okadaic acid (100 nM) significantly induced cell apoptosis in confluent rabbit lens epithelial cells (RLECs). Okadaic acid also induced the expression of p53 and bax, which are necessary for the apoptotic programs. In N/N1003A cells, okadaic acid (10 nM) decreased total phosphatase activity by 20% and mainly inhibited PP-2A activity, while okadaic acid (100 nM) reduced 81% total phosphatase activity and inhibited PP-1 and PP-2A activity.
| Molecular Weight | 805.01 |
| Formula | C44H68O13 |
| CAS Number | 78111-17-8 |
| Solubility (25°C) | DMSO 25 mg/mL Ethanol 25 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
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M5N36 is a potent and selective Cdc25C inhibitor with IC50 values of 0.15, 0.19, 0.06 µM for Cdc25A, Cdc25B, Cdc25C, respectively. |
| DPM-1003
DPM-1003 is an orally potent, specific inhibitor of PTP1B. |
| D-3
D-3, a phosphorpeptide, is an efficient, simple, and specific iPSC-eliminating agent. |
| EGF Receptor Substrate 2 (Phospho-Tyr5)
EGF Receptor Substrate 2 (Phospho-Tyr5) acetate, a biologically active peptide, is a tyrosine phosphate substrate. |
| Calcineurin autoinhibitory peptide
Calcineurin autoinhibitory peptide is a selective inhibitor of Ca2+/calmodulin-dependent protein phosphatase (calcineurin), with an IC50 of ~10 μM. |
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