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| NSC 663284 Basic information |
| Product Name: | NSC 663284 | | Synonyms: | CDC25 Phosphatase Inhibitor II, NSC 663284 - CAS 383907-43-5 - Calbiochem;CDC25 Phosphatase Inhibitor II, NSC 663284;5,8-Quinolinedione, 6-chloro-7-[[2-(4-morpholinyl)ethyl]amino]- | | CAS: | 383907-43-5 | | MF: | C15H16ClN3O3 | | MW: | 321.76 | | EINECS: | | Product Categories: | Protein Phosphatase | | Mol File: | 383907-43-5.mol |
| NSC 663284 Chemical Properties |
| Boiling point | 478.8±45.0 °C(Predicted) | | density | 1.41±0.1 g/cm3(Predicted) | | storage temp. | 2-8°C | | solubility | DMSO: 16 mg/mL | | form | solid | | pka | 6.79±0.10(Predicted) | | color | red | | Sensitive | Light Sensitive | | Stability: | Stable for 2 years from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20° for up to 1 month. |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26 | | WGK Germany | 3 |
| NSC 663284 Usage And Synthesis |
| Description | NSC663284 (383907-43-5) is a potent, selective and irreversible inhibitor of CDC25 phosphatases, Ki=29, 95 and 89 nM for human CDC25A, B2 and C respectively and >20- and >450-fold selective over VHR and PTP1B.1?Arrests cells at G1 and G2/M and inhibits cdk1 and 2 activation.2 Inhibits the growth of a variety of human tumor cell lines.3 NSC663284 acts via irreversible oxidation of the catalytic cysteine of CDC25.4 | | Uses | CDC25 Phosphatase Inhibitor II, NSC 663284 is a competitive CDC25 inhibitor and cell cycle arresting compound. | | General Description | A cell-permable, potent, irreversible, and competitive inhibitor of the Cdc25 phosphatase family (Ki = 29 nM, 95 nM, and 89 nM for Cdc25A, Cdc25B2, and Cdc25C, respectively) with anti-proliferative properties. Displays nearly 20- and 450-fold greater selectivity over VHR and PTP1B (IC50 = 4.0 μM and >100 μM, respectively). Reported to arrest cell cycle progression, inhibit Cdk dephosphorylation, and delay tumor growth (mean IC50 = 1.5 μM in NCI-60 tumor cell panel). Also shown to block ERK dephosphorylation caused by ectopic Cdc25A expression. | | Biological Activity | Potent, selective inhibitor of Cdc25 dual specificity phosphatases (K i values are 29, 95 and 89 nM for human Cdc25A, Cdc25B 2 and Cdc25C respectively); > 20- and > 450-fold selective over VHR and PTP1B phosphatases respectively. Arrests cells at both G 1 and G 2 /M phase and blocks cdk2 and cdk1 activation. Blocks proliferation of a range of human tumor cell lines (IC 50 = 0.2-35 μ M). | | Biochem/physiol Actions | Cell permeable: yes | | References | 1) Lazo et al. (2001), Discovery and biological evaluation of a new family of potent inhibitors of the dual specificity protein phosphatases Cdc25; J. Med. Chem., 44 4042
2) Pu et al. (2002), Dual G1 and G2 phase inhibition by a novel, selective Cdc25 inhibitor 6-chloro-7-(2-morpholin-4-ylethylamino)-quinoline-3,8-dione; J. Biol. Chem., 277 46877
3) Han et al. (2004), NAD(P)H:quinone oxidoreductase-1-dependent and independent cytotoxicity of potent quinone Cdc25 phosphatase inhibitors; J. Pharmacol. Exp. Ther., 309 64
4) Brisson et al. (2005), Redox regulation of Cdc25B by cell-active quinolonediones; Mol. Pharmacol., 68 1810 |
| NSC 663284 Preparation Products And Raw materials |
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