KU-55933
Cat.No:IK0200 Solarbio
CAS:587871-26-9
Molecular Formula:C21H17NO3S2
Molecular Weight:395.49
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to brown Solid
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KU-55933CAS:587871-26-9
Molecular Formula:C21H17NO3S2
Molecular Weight:395.49
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to brown Solid
Qty:
Size:
CAS | 587871-26-9 |
Name | KU-55933 |
Molecular Formula | C21H17NO3S2 |
Molecular Weight | 395.49 |
Solubility | Soluble in DMSO |
Purity | ≥98% |
Appearance | White to brown Solid |
Storage | Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year |
MDL | MFCD08276985 |
SMILES | O=C1C=C(OC(C2=C3SC4=C(SC3=CC=C2)C=CC=C4)=C1)N5CCOCC5 |
Target Point | ATM/ATR |
Passage | DNA Damage/DNA Repair; PI3K/Akt/mTOR |
Background | KU-55933 is a potent ATM inhibitor. |
Biological Activity | KU-55933 是有效的 ATM 抑制剂,IC50 和 Ki 值分别为 12.9 和 2.2 nM;对 ATM 的选择性比对 DNA-PK,PI3K/PI4K,ATR 和 mTOR 高。[1-3] |
IC50 | ATM:12.9nM(IC50)[1-3] |
In Vitro | KU-55933(10μM)阻断电离辐射诱导的p53丝氨酸15磷酸化。 KU-55933在抑制这种ATM依赖性磷酸化事件中具有剂量依赖性作用,估计IC50为300nM。 KU-55933消除了这些ATM底物的电离辐射诱导的磷酸化。 KU-55933特异性抑制ATM而不是其他DNA损伤激活的PIKK,ATR和DNA-PK [1]。 KU-55933诱导pATM,p53,E2F1和pATR,在0.5小时的时间点显著上调E2F1的核部分[2]。二甲双胍增加原代肝细胞中ATM和AMPK的磷酸化以及SHP蛋白水平,二甲双胍的这种刺激作用被特定的ATM激酶抑制剂KU-55933抑制[3]。 |
Cell Experiment | 将1BR或AT4细胞接种在10-cm培养皿中并在第2天处理(80-90%汇合)。用KU-55933或载体对照将细胞预孵育1小时,然后暴露于5Gy的电离辐射。进行细胞周期分布的时间过程,选择群体区分的最佳时间为16小时。所有后续实验均在16小时时间点进行。根据标准方案用碘化丙锭染色细胞,并用FACScalibur通过FACS分析。将指定生长(50-70%汇合)的60mm培养皿中的SW620细胞暴露于KU-55933或DMSO 1小时,然后加入依托泊苷(终浓度0.1和1μM)16小时,收获前,碘化丙锭染色和分析如上。 |
Kinase Experiment | 用于体外试验的ATM通过用含有25mM HEPES(pH 7.4),2mM MgCl 2,250mM KCl,500μMEDTA的缓冲液中ATM的COOH-末端400个氨基酸的兔多克隆抗血清进行免疫沉淀获得,100μMNa3 VO 4,10%v/v甘油和0.1%v/v Igepal。通过与蛋白A-Sepharose珠孵育1小时,然后通过离心以回收珠,从核提取物中分离ATM-抗体复合物。在96孔板的孔中,含有ATM的Sepharose珠与ATM试剂缓冲液中的1μg底物谷胱甘肽S-转移酶-p53N66(与谷胱甘肽S-转移酶融合的p53的氨基末端66个氨基酸)一起孵育[25]。在存在或不存在抑制剂的情况下,在37℃下,使用mM HEPES(pH7.4),75mM NaCl,3mM MgCl 2,2mM MnCl2,50μMNa3 VO4,500μMDTT和5%v/v甘油。在轻微摇动10分钟后,加入ATP至终浓度为50μM,并在37℃下继续反应1小时。将板以250×g离心10分钟(4℃)以除去含有ATM的珠子,除去上清液并转移到白色不透明的96孔板中并在室温下孵育1.5小时以允许谷胱甘肽S-转移酶-p53N66结合。然后用PBS洗涤该板,吸干,并用标准ELISA技术用磷酸丝氨酸15p53抗体分析。磷酸化谷胱甘肽S-转移酶-p53N66底物的检测与山羊抗小麦辣根过氧化物酶偶联的二抗组合进行。增强的化学发光溶液用于产生信号,化学发光检测通过TopCount读板器进行。 |
Data Literature Source | [1]. Hickson I,et al. Identification and characterization of a novel and specific inhibitor of the ataxia-telangiectasia mutated kinase ATM. Cancer Res. 2004 Dec 15;64(24):9152-9 [2]. Khalil HS,et al. Pharmacological inhibition of ATM by KU55933 stimulates ATM transcription.Exp Biol Med (Maywood). 2012 Jun;237(6):622-34. Epub 2012 Jun 22. [3]. Kim YD,et al. Orphan nuclear receptor SHP negatively regulates growth hormone-mediated induction of hepatic gluconeogenesis through inhibition of STAT5 transactivation.J Biol Chem. 2012 Sep 12 |
Unit | Bottle |
Specification | 5mg 10mg |
KU-55933 是有效的 ATM 抑制剂。
Remark:These protocols are for reference only. Solarbio does not independently validate these methods.
Note:
1. The products are all for scientific research use only. Do not use it for medical, clinical diagnosis or treatment, food and cosmetics, etc. Do not store them in ordinary residential areas.
2. For your safety and health, please wear laboratory clothes, disposable gloves and masks.
3. The experimental results may be affected by many factors, after-sale service is limited to the product itself and does not involve other compensation.
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