1. Cell Cycle/DNA Damage PI3K/Akt/mTOR Autophagy
  2. ATM/ATR Autophagy
  3. KU-55933

KU-55933 是有效的 ATM 抑制剂,IC50Ki 值分别为 12.9 和 2.2 nM;对 ATM 的选择性比对 DNA-PK,PI3K/PI4K,ATRmTOR 高。

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KU-55933 Chemical Structure

KU-55933 Chemical Structure

CAS No. : 587871-26-9

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10 mM * 1 mL in DMSO ¥550
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5 mg ¥498
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Top Publications Citing Use of Products

MCE 顾客使用本产品发表的 32 篇科研文献

Proliferation Assay
RT-PCR

    KU-55933 purchased from MCE. Usage Cited in: Environ Pollut. 2018 Jul;238:1048-1055.  [Abstract]

    Time-effects of endosulfan on DNA damage and repair related genes. (AeD) Relative mRNA expression levels of ATM (A), BRCA1 (B), BRCA2 (C) and FANCD2 (D) are measured by qRT-PCR after endosulfan exposure (75 μM, for 12, 24 and 48 h) in the absence and presence of KU-55933.

    KU-55933 purchased from MCE. Usage Cited in: Front Oncol. 2017 May 19;7:98.  [Abstract]

    ATM inhibition by treatment with KU-55933 (10 µM) strongly reduces HR efficiency in JJN3-HR and U266-HR, although cells are still able to perform HR to some extent.

    查看 ATM/ATR 亚型特异性产品:

    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    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.

    IC50 & Target[1]

    ATM

    12.9 nM (IC50)

    DNA-PK

    2500 nM (IC50)

    mTOR

    9300 nM (IC50)

    PI3K

    16600 nM (IC50)

    体外研究
    (In Vitro)

    KU-55933 (10 μM) 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 依赖性磷酸化事件方面具有剂量依赖性作用,估计 IC50 为 300 nM。KU-55933 消除电离辐射诱导的这些 ATM 底物的磷酸化。KU-55933 特异性抑制 ATM,但不抑制其他 DNA 损伤激活的 PIKK、ATR 和 DNA-PK[1]
    KU-55933 诱导 pATM、p53、E2F1 和 pATR,在 0.5 小时时间点显著上调 E2F1 的核部分[2]

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    分子量

    395.49

    Formula

    C21H17NO3S2

    CAS 号
    性状

    固体

    颜色

    White to khaki

    运输条件

    Room temperature in continental US; may vary elsewhere.

    储存方式
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 1 year
    -20°C 6 months
    溶解性数据
    In Vitro: 

    DMSO 中的溶解度 : 50 mg/mL (126.43 mM; 超声助溶; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

    配制储备液
    浓度 溶剂体积 质量 1 mg 5 mg 10 mg
    1 mM 2.5285 mL 12.6425 mL 25.2851 mL
    5 mM 0.5057 mL 2.5285 mL 5.0570 mL
    查看完整储备液配制表

    * 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
    储备液的保存方式和期限:-80°C, 1 year; -20°C, 6 months。-80°C储存时,请在1个月内使用, -20°C储存时,请在6个月内使用。

    • 摩尔计算器

    • 稀释计算器

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    质量
    =
    浓度
    ×
    体积
    ×
    分子量 *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    浓度 (start)

    C1

    ×
    体积 (start)

    V1

    =
    浓度 (final)

    C2

    ×
    体积 (final)

    V2

    In Vivo:

    请根据您的 实验动物和给药方式 选择适当的溶解方案。

    以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:
    ——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用
    以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

    • 方案 一

      请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 2.5 mg/mL (6.32 mM); 澄清溶液

      此方案可获得 ≥ 2.5 mg/mL(饱和度未知)的澄清溶液。

      1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;再向上述体系中加入 50 μL Tween-80,混合均匀;然后再继续加入 450 μL 生理盐水 定容至 1 mL

      生理盐水的配制:将 0.9 g 氯化钠,溶解于 ddH₂O 并定容至 100 mL,可以得到澄清透明的生理盐水溶液。
    • 方案 二

      请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in Saline)

      Solubility: ≥ 2.5 mg/mL (6.32 mM); 澄清溶液

      此方案可获得 ≥ 2.5 mg/mL(饱和度未知)的澄清溶液。

      1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液 中,混合均匀。

      20% SBE-β-CD in Saline 的配制(4°C,储存一周):2 g SBE-β-CD(磺丁基醚 β-环糊精)粉末定容于 10 mL 的生理盐水中,完全溶解至澄清透明。
    动物溶解方案计算器
    请输入动物实验的基本信息:

    给药剂量

    mg/kg

    动物的平均体重

    g

    每只动物的给药体积

    μL

    动物数量

    由于实验过程有损耗,建议您多配一只动物的量
    请输入您的动物体内配方组成:
    %
    DMSO +
    +
    %
    Tween-80 +
    %
    Saline
    如果您的动物是免疫缺陷鼠或者体弱鼠,建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
    方案所需 助溶剂 包括:DMSO ,均可在 MCE 网站选购。 Tween 80,均可在 MCE 网站选购。
    计算结果
    工作液所需浓度 : mg/mL
    储备液配制方法 : mg 药物溶于 μL  DMSO(母液浓度为 mg/mL)。
    您所需的储备液浓度超过该产品的实测溶解度,以下方案仅供参考,如有需要,请与 MCE 中国技术支持联系。
    动物实验体内工作液的配制方法 : 取 μL DMSO 储备液,加入 μL  μL ,混合均匀至澄清,再加 μL Tween 80,混合均匀至澄清,再加 μL 生理盐水
    连续给药周期超过半月以上,请谨慎选择该方案。
    请确保第一步储备液溶解至澄清状态,从左到右依次添加助溶剂。您可采用超声加热 (超声清洗仪,建议频次 20-40 kHz),涡旋吹打等方式辅助溶解。
    纯度 & 产品资料

    纯度: 99.88%

    参考文献
    Kinase Assay
    [1]

    ATM for use in the in vitro assay is obtained by immunoprecipitation with rabbit polyclonal antiserum raised to the COOH-terminal 400 amino acids of ATM in buffer containing 25 mM HEPES (pH 7.4), 2 mM MgCl2, 250 mM KCl, 500 μM EDTA, 100 μM Na3VO4, 10% v/v glycerol, and 0.1% v/v Igepal. ATM-antibody complexes are isolated from nuclear extract by incubating with protein A-Sepharose beads for 1 hour and then through centrifugation to recover the beads. In the well of a 96-well plate, ATM-containing Sepharose beads are incubated with 1 μg of substrate glutathione S-transferase-p53N66 (NH2-terminal 66 amino acids of p53 fused to glutathione S-transferase) in ATM assay buffer [25 mM HEPES (pH 7.4), 75 mM NaCl, 3 mM MgCl2, 2 mM MnCl2, 50 μM Na3VO4, 500 μM DTT, and 5% v/v glycerol] at 37°C in the presence or absence of inhibitor. After 10 minutes with gentle shaking, ATP is added to a final concentration of 50 μM and the reaction continued at 37°C for an additional 1 hour. The plate is centrifuged at 250×g for 10 minutes (4°C) to remove the ATM-containing beads, and the supernatant is removed and transferred to a white opaque 96-well plate and incubated at room temperature for 1.5 hours to allow glutathione S-transferase-p53N66 binding. This plate is then washed with PBS, blotted dry, and analyzed by a standard ELISA technique with a phospho-serine 15 p53 antibody. The detection of phosphorylated glutathione S-transferase-p53N66 substrate is performed in combination with a goat antimouse horseradish peroxidase-conjugated secondary antibody. Enhanced chemiluminescence solutionis used to produce a signal and chemiluminescent detection is carried out via a TopCount plate reader.

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Cell Assay
    [1]

    1BR or AT4 cells are seeded in 10-cm Petri dishes and treated on day 2 (80 to 90% confluence). Cells are preincubated for 1 hour with KU-55933 or vehicle control and then exposed to 5 Gy of ionizing radiation. Time courses of cell cycle distribution are performed, and the optimal time for discrimination of populations is selected as 16 hours. All subsequent experiments are performed at the 16-hour time point. Cells are stained with propidium iodide according to standard protocols and analyzed by FACS with a FACScalibur. Exponentially growing (50-70% confluent) SW620 cells in 60 mm dishes are exposed to KU-55933 or DMSO for 1 h before addition of etoposide (final concentration of 0.1 and 1 μM) for 16 h before harvesting, propidium iodide staining and analysis as above.

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    参考文献

    完整储备液配制表

    * 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
    储备液的保存方式和期限:-80°C, 1 year; -20°C, 6 months。-80°C储存时,请在1个月内使用, -20°C储存时,请在6个月内使用。

    可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 2.5285 mL 12.6425 mL 25.2851 mL 63.2127 mL
    5 mM 0.5057 mL 2.5285 mL 5.0570 mL 12.6425 mL
    10 mM 0.2529 mL 1.2643 mL 2.5285 mL 6.3213 mL
    15 mM 0.1686 mL 0.8428 mL 1.6857 mL 4.2142 mL
    20 mM 0.1264 mL 0.6321 mL 1.2643 mL 3.1606 mL
    25 mM 0.1011 mL 0.5057 mL 1.0114 mL 2.5285 mL
    30 mM 0.0843 mL 0.4214 mL 0.8428 mL 2.1071 mL
    40 mM 0.0632 mL 0.3161 mL 0.6321 mL 1.5803 mL
    50 mM 0.0506 mL 0.2529 mL 0.5057 mL 1.2643 mL
    60 mM 0.0421 mL 0.2107 mL 0.4214 mL 1.0535 mL
    80 mM 0.0316 mL 0.1580 mL 0.3161 mL 0.7902 mL
    100 mM 0.0253 mL 0.1264 mL 0.2529 mL 0.6321 mL
    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    产品名称:
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    目录号:
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