AZ31
Catalog No.S8556
Molecular Weight(MW): 420.50
AZ31 is a selective and novel ATM inhibitor with an IC50 of <0.0012 μM. It shows excellent selectivity over closely related enzymes (>500 fold selective over DNA-PK and PI3Kα and >1000 fold selective over mTOR, PI3Kβ and PI3Kγ).
Purity & Quality Control
Choose Selective ATM/ATR Inhibitors
Biological Activity
| Description | AZ31 is a selective and novel ATM inhibitor with an IC50 of <0.0012 μM. It shows excellent selectivity over closely related enzymes (>500 fold selective over DNA-PK and PI3Kα and >1000 fold selective over mTOR, PI3Kβ and PI3Kγ). | |
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| In vitro |
Antitumor effects of AZ31 + SN38 are cytostatic rather than cytotoxic[1]. |
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| In vivo |
Pharmacokinetic investigation of AZ31 as a single agent and in combination with irinotecan revealed that plasma concentrations of AZ31 were highest 1-hour after administration followed by a stepwise decrease at 3, 6 and 16 hour in the combination sensitive CRC098[1]. |
Protocol
| Kinase Assay: |
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ATM enzyme assay: Compounds in 100% DMSO were added to assay plates by acoustic dispensing. ATM enzyme was added in a Hepes buffer (50 mM HEPES pH 7.4, 150 mM NaCl, 10 mM, MnCl2 1 mM, DTT, 5% v/v Glycerol, 0.05% v/v Tween 20) and allowed to preincubate with compound for 30 minutes prior to addition of substrate solution containing p53 and ATP. The enzyme reaction was stopped after 2 hours by the addition of detection reagent (33 mM HEPES pH 7.4, 20 mM EDTA, 0.1 M KF, 0.1 mg/mL BSA, 13 nM D2 Anti-GST antibody (Cisbio) and 0.5 nM Eu3+ Anti-p53phosphoS15 antibody) and incubated overnight before reading on a Pherastar Instrument with a standard HTRF filter block method. The final concentrations of DMSO, ATP and p53 in the assay were 1%, 5 µM, and 50 nM respectively. IC50 values (concentrations of test compound that inhibited 50% of enzyme activity) were determined using a four parameter fit method (smart fitting model) in the data analysis software. |
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Solubility (25°C)
| In vitro | DMSO | 53 mg/mL (126.04 mM) |
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| Water | Insoluble | |
| Ethanol | Insoluble |
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Information
| Molecular Weight | 420.50 |
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| Formula | C24H28N4O3 |
| CAS No. | 2088113-98-6 |
| Storage | powder |
| in solvent | |
| Synonyms | N/A |
Bio Calculators
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Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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