KU-55933 chemical structure
Chemical structureResearch use only
CAT. NO. DC1067Featured

KU-55933

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Product overview

Description & Application

KU-55933 is a potent ATM inhibitor with an IC50 and Ki of 12.9 and 2.2 nM, respectively, and is highly selective for ATM as compared to DNA-PK, PI3K/PI4K, ATR and mTOR.

ParameterValue
Chemical Name2-Morpholino-6-(thianthren-1-yl)-4H-pyran-4-one
CAS No.587871-26-9
Synonyms2-Morpholin-4-yl-6-thianthren-1-ylpyran-4-one;KU-55933 (ATM Kinase Inhibitor);2-Morpholino-6-(thianthren-1-yl)-4H-pyran-4-one;KU 55933;Ku-55933;KU-55933 (KU 55933, KU55933);Name: KU-55933;2-Morpholin-4-yl-6-thianthren-1-yl-pyran-4-one;2-Thianthren-1-yl-6-morpholin-4-yl-pyran-4-one;ATM Kinase Inhibitor;2-(4-Morpholinyl)-6-(1-thianthrenyl)-4H-Pyran-4-one;2-(Morpholin-4-yl)-6-(thianthren-1-yl)-4H-pyran-4-one;KU55933;O549494L5D;2-morpholino-6-thianthren-1-yl-pyran-4-one;4H-Pyran-4-one, 2-(4-morpholinyl)-6-(1-thianthrenyl)-;PubChem22474;GTPL5928;2-Thian
FormulaC21H17NO3S2
M.Wt395.4946
SMILESS1C2=C([H])C([H])=C([H])C([H])=C2SC2=C([H])C([H])=C([H])C(=C12)C1=C([H])C(C([H])=C(N2C([H])([H])C([H])([H])OC([H])([H])C2([H])[H])O1)=O
Purity>98%
Storage2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Biological Activity

KU-55933 is a potent ATM inhibitor with an IC50 and Ki of 12.9 and 2.2 nM, respectively, and is highly selective for ATM as compared to DNA-PK, PI3K/PI4K, ATR and mTOR.

In Vitro

KU-55933 (10 μM) blocks the ionizing radiation-induced p53 serine 15 phosphorylation. KU-55933 has a dose-dependent effect in inhibiting this ATM-dependent phosphorylation event with an estimated IC50 of 300 nM. KU-55933 ablates the ionizing radiation-induced phosphorylation of these ATM substrates. KU-55933 specifically inhibits ATM but not the other DNA damage-activated PIKKs, ATR, and DNA-PK[1]. KU-55933 induces pATM, p53, E2F1 and pATR, noticeably upregulates the nuclear fraction of E2F1 at the 0.5 h time point[2]. Metformin increases ATM and AMPK phosphorylation, as well as SHP protein level in primary hepatocytes, and this stimulatory effect of metformin is repressed by a specific ATM kinase inhibitor KU-55933[3].

In Vivo

No in vivo data are provided in the current product source. Contact us for further information.

References & source

DC Chemicals original product information

Published experimental findings depend on the model and assay conditions. They do not guarantee equivalent performance in every application. For laboratory research use only.

Product documentation

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Handling guide

2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

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