Adavosertib （MK-1775）
For research use only. Not for use in humans.
Catalog No.S1525
111 publications
Molecular Weight(MW): 500.6
MK-1775 is a potent and selective Wee1 inhibitor with IC50 of 5.2 nM in a cell-free assay; hinders G2 DNA damage checkpoint. Phase 2.
Purity & Quality Control
Choose Selective Wee1 Inhibitors
Biological Activity
| Description | MK-1775 is a potent and selective Wee1 inhibitor with IC50 of 5.2 nM in a cell-free assay; hinders G2 DNA damage checkpoint. Phase 2. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Features | The first reported Wee1 inhibitor. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Targets |
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| In vitro |
MK-1775 inhibits Wee1 kinase in an ATP-competitive manner. Compared to Wee1, MK-1775 displays 2- to 3-fold less potency against Yes with IC50 of 14 nM, 10-fold less potency against seven other kinases with >80% inhibition at 1 μM, and >100-fold selectivity over human Myt 1, another kinase that inhibits cyclin-dependent kinase 1 (CDC2) by phosphorylation at an alternative site (Thr14). By abrogating the DNA damage checkpoint via blockade of Wee1 activity in WiDr cells bearing mutated p53, MK-1775 treatment inhibits the basal phosphorylation of CDC2 at Tyr15 (CDC2Y15) with EC50 of 49 nM, and suppresses gemcitabine-, carboplatin- or cisplatin-induced phosphorylation of CDC2 and cell cycle arrest in a dose-dependent manner, with EC50 of 82 nM and 81 nM, 180 nM and 163 nM, as well as 159 nM and 160 nM, respectively. MK-1775 treatment alone at 30-100 nM has no significant antiproliferative effect in WiDr and H1299 cells, whereas MK-1775 at 300 nM, sufficient to inhibit Wee1 by >80%, displays moderate but significant antiproliferative effects by 34.1% in WiDr cells and 28.4% in H1299 cells. [1] |
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| Cell Data |
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| Assay |
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| In vivo | MK-1775 treatment alone at ~20 mg/kg displays minimal antitumor effects against WiDr xenografts in rats with T/C of 69% at day 3. Antitumor efficacy by MK-1775 alone in the nude rat HeLa-luc and TOV21G-shp53 xenograft models is also moderate. [1] |
Protocol
| Kinase Assay: |
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In vitro kinase assays: Recombinant human Wee1 is used. Kinase reaction is conducted with 10 μM ATP, 1.0 μCi of [γ-33P]ATP, and 2.5 μg of poly(Lys, Tyr) as a substrate in the presence of increasing concentrations of MK-1775 at 30°C for 30 minutes. Radioactivity incorporated into the substrate is trapped on MultiScreen-PH plates and is counted on a liquid scintillation counter. |
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| Cell Research: |
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| Animal Research: |
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Solubility (25°C)
| In vitro | DMSO | 80 mg/mL (159.8 mM) |
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| Ethanol | 10 mg/mL (19.97 mM) | |
| Water | 0.0001 mg/mL (0.0 mM) | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 2% DMSO+30% PEG 300+5% Tween 80+ddH2O For best results, use promptly after mixing. |
5mg/mL |
* 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 | 500.6 |
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| Formula | C27H32N8O2 |
| CAS No. | 955365-80-7 |
| Storage | powder |
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| Synonyms | N/A |
| Smiles | CN1CCN(CC1)C2=CC=C(NC3=NC4=C(C=N3)C(=O)N(CC=C)N4C5=NC(=CC=C5)C(C)(C)O)C=C2 |
Bio Calculators
Molarity Calculator
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*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Dilution Calculator
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
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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.
Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.
Frequently Asked Questions
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Question 1:
How to prepare MK1775 methylcellulose solution? and how to prepare methylcellulose itself? Once make the MK1775 methylcellulose solution, how should i keep it?
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Answer:
MK1775 in 0.5% methylcellulose is a suspension or emulsion, and it is ok to treat mice orally. It is recommended to dissolve methylcellulose in saline. It will take some time to dissolve methylcellulose, and you can vortex it for a while. The MK1775 methylcellulose solution can be stored at 4°C for a week.
