2. Cell Cycle/DNA Damage Apoptosis
  3. Deubiquitinase Apoptosis
  4. LDN-57444

LDN-57444 是一种可逆的，竞争性的，定向位点的泛素 C 末端水解酶 L1 (UCH-L1) 抑制剂，IC50 和 Ki 值分别为 0.88 μM 和 0.40 μM；LDN-57444 同时可抑制 UCH-L3 的活性，IC50 值为 25 μM。

MCE 的所有产品仅用作科学研究或药证申报，我们不为任何个人用途提供产品和服务

LDN-57444 Chemical Structure

LDN-57444 Chemical Structure

CAS No. : 668467-91-2

1.  客户无需承担相应的运输费用。

2.  同一机构（单位）同一产品试用装仅限申领一次，同一机构（单位）一年内

     可免费申领三个不同产品的试用装。

3.  试用装只面向终端客户。

规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ￥627
In-stock
5 mg ￥554
In-stock
10 mg ￥950
In-stock
50 mg ￥3200
In-stock
100 mg ￥4788
In-stock
200 mg   询价  
500 mg   询价  

* Please select Quantity before adding items.

Customer Review

LDN-57444 相关抗体

Top Publications Citing Use of Products

    LDN-57444 purchased from MCE. Usage Cited in: Biochem Biophys Res Commun. 2018 Mar 4;497(2):726-733.  [Abstract]

    Drug screen of UCHL1 and the function of inhibitors in autophagy. Both LDN and NSC could inhibit UCHL1 hydrolase activity. mRFP-GFP-LC3 stable cell line is treated with 5 μM LDN or 10 μM NSC in the condition of DMSO or Torin1 respectively for 6 h. The number of LC3 puncta remarkably is raised both in LDN and NSC treatment cells compared to the control.

    LDN-57444 purchased from MCE. Usage Cited in: Biochem Biophys Res Commun. 2018 Mar 4;497(2):726-733.  [Abstract]

    Drug screen of UCHL1 and the function of inhibitors in autophagy. Both LDN and NSC could inhibit UCHL1 hydrolase activity. Each cell lysate is analyzed by immunoblotting with anti p62 and LC3 antibodies.

    LDN-57444 purchased from MCE. Usage Cited in: J Surg Oncol. 2017 Jun;115(8):932-940.  [Abstract]

    p-ERK1/2 and ERK1/2 P-gp protein level are assessed by Western blot.

    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    LDN-57444 is a reversible, competitive and site-directed inhibitor of ubiquitin C-terminal hydrolase L1 (UCH-L1), with an IC50 of 0.88 μM and a Ki of 0.40 μM; LDN-57444 also suppresses UCH-L3 activity, with an IC50 of 25 μM.

    IC50 & Target

    IC50: 0.88 μM (UCH-L1), 25 μM (UCH-L3)[1]
    Ki: 0.40 μM (UCH-L1)[1]
    体外研究
    (In Vitro)

    LDN-57444 is a reversible, competitive inhibitor of UCH-L1, with an IC50 of 0.88 μM, and also suppresses UCH-L3 activity, with an IC50 of 25 μM[1]. LDN-57444 (LDN, 5 μM for 1 hr) inhibits 70% of Uch activity in hippocampal slices of the mouse brain. LDN-57444 (5 μM for 2 hr) does not reduce potentiation further in APP/PS1 slices or in wt slices exposed to 200 nM Aβ[2]. LDN-57444 (25-100 μM) inhibits ubiquitin-proteasome activity dose-dependently in SK-N-SH cells. LDN-57444 (50 μM) also induces apoptotic cell death, causes the endoplasmic reticulum stress and results in expression of spliced XBP-1(XBP-1s, 48KD) in SK-N-SH cells[3].

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

    LDN-57444 相关抗体:
    体内研究
    (In Vivo)

    LDN-57444 (0.4 mg/kg, i.p.) blocks the beneficial effect of V-Uch-L1, and worsens contextual conditioning performance as the mice are exposed to the context at 1, 7, 14, and 21 days after training[2].

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

    397.64

    Formula

    C17H11Cl3N2O3
    CAS 号
    性状

    固体

    颜色

    Light yellow to yellow

    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 6 months
    -20°C 1 month
    溶解性数据
    In Vitro: 

    DMSO 中的溶解度 : 25 mg/mL (62.87 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 2.5148 mL 12.5742 mL 25.1484 mL
    5 mM 0.5030 mL 2.5148 mL 5.0297 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, 6 months; -20°C, 1 month。-80°C储存时，请在6个月内使用，-20°C储存时，请在1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    90% Corn Oil

      Solubility: ≥ 2.5 mg/mL (6.29 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，此方案实验周期在半个月以上的动物实验酌情使用。

      以 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玉米油中，混合均匀。

    以下溶解方案，请直接配置工作液。建议现用现配，在短期内尽快用完。 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： 50% PEG300    50% Saline

      Solubility: 10 mg/mL (25.15 mM); 悬浊液; 超声助溶

    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

    只
    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
    参考文献
    Kinase Assay
    [1]

    To start an assay, 0.5 μL of 5 mg/mL test compound (including LDN-57444, about 50 μM final reaction concentration) or DMSO control is aliquoted into each well. Both enzyme and substrate are prepared in UCH reaction buffer (50 mM Tris-HCl [pH 7.6], 0.5 mM EDTA, 5 mM DTT, and 0.5 mg/mL ovalbumin). 25 μL of 0.6 nM UCH-L1 is then added to each well except substrate control wells, followed by plate shaking for 45-60 s on an automatic shaker. The enzyme/compound mixture is incubated at room temperature for 30 min before 25 μL of 200 nM Ub-AMC is added to initiate the enzyme reaction. The reaction mixture (300 pM UCH-L1, 100 nM Ubiquitin-AMC with 2.5 μg test compound) is incubated at room temperature for 30 additional minutes prior to quenching the reaction by the addition of 10 μL 500 mM acetic acid per well. The fluorescence emission intensity is measured on a LJL Analyst using a coumarin filter set (ex = 365 nm, em = 450 nm) and is subtracted by the intrinsic compound fluorescence to reveal the enzyme activity. A DMSO control (0.5 μL of DMSO, 25 μL of UCH-L1, 25 μL of ubiquitin-AMC, 10 μL of acetic acid), enzyme control (25 μL of UCH-L1, 25 μL of buffer, 10 μL of acetic acid), substrate control (25 μL of buffer, 25 μL of ubiquitin-AMC, 10 μL of acetic acid), and inhibitor control (0.5 μL of ubiquitin aldehyde [100 nM stock], 25 μL of UCH-L1, 25 μL of ubiquitin-AMC, 10 μL of acetic acid) are also performed in each assay plate to ensure quality and reproducibility. The UCH-L1 enzymatic reactions are manually repeated twice using the same protocol to confirm the results for the hit compounds from the primary robot-assisted screen[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Cell Assay
    [3]

    Cell viability is measured by a quantitative colorimetric assay with MTT. After drug treatment SK-N-SH cells are incubated for 4 h with 5 g/L MTT and then DMSO is added for 15 min. The absorption is quantified at 570 nm using a micro-plate reader[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Animal Administration
    [2]

    Each animal is placed individually into the conditioning chamber. The electric current is gradually increased (0.1 mA for 1 sec. at 30 sec. intervals increasing the shock intensity by 0.1 mA to 0.7 mA). Animal behavior is evaluated for the first visible response to the shock (flinch), the first extreme motor response (run/jump), and the first vocalized distress (scream). Threshold to flinching, jumping, and screaming is quantified for each animal by averaging of the shock intensity at which each animal manifests a behavioral response of that type to the foot shock. Visual, motor, and motivation skills are also tested with visible platform training by measuring the time and the speed to reach a visible platform placed within a pool filled with water. Both time to reach the platform and swimming speed are recorded and analyzed with a video tracking system. No difference is observed among different groups of mice in the experiments in which fear conditioning is tested both in the presence of LDN-57444 (LDN) and TAT fusion proteins. To decide the time of administration of LDN-57444, a series of preliminary experiments are performed in which the inhibitor is injected intra-peritoneally at different intervals (4 hrs before, 1 hr before, 1 hr after and 4 hrs after) from the electric shock. During the training phase, there is no difference in the freezing of LDN-57444- or vehicle-injected mice[2].

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

    LDN-57444 相关分类

    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, 6 months; -20°C, 1 month。-80°C储存时，请在6个月内使用，-20°C储存时，请在1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 2.5148 mL 12.5742 mL 25.1484 mL 62.8709 mL
    5 mM 0.5030 mL 2.5148 mL 5.0297 mL 12.5742 mL
    10 mM 0.2515 mL 1.2574 mL 2.5148 mL 6.2871 mL
    15 mM 0.1677 mL 0.8383 mL 1.6766 mL 4.1914 mL
    20 mM 0.1257 mL 0.6287 mL 1.2574 mL 3.1435 mL
    25 mM 0.1006 mL 0.5030 mL 1.0059 mL 2.5148 mL
    30 mM 0.0838 mL 0.4191 mL 0.8383 mL 2.0957 mL
    40 mM 0.0629 mL 0.3144 mL 0.6287 mL 1.5718 mL
    50 mM 0.0503 mL 0.2515 mL 0.5030 mL 1.2574 mL
    60 mM 0.0419 mL 0.2096 mL 0.4191 mL 1.0478 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.

    Keywords:

    LDN-57444668467-91-2LDN57444LDN 57444DeubiquitinaseApoptosisDUBsInhibitorinhibitorinhibit

    您最近查看的产品:

    Your information is safe with us. * Required Fields.

       产品名称：

    		  

    * 需求量：

    * 客户姓名：

    		 

    * Email：

    * 电话：

    		 

    * 公司或机构名称：

       留言给我们：

    Bulk Inquiry

    Inquiry Information

    产品名称：
    LDN-57444
    目录号：
    HY-18637
    需求量：

    Request for HNMR Report

    Please fill out this form to request the QC report. We will send it to your Email address shortly.

    Your information is safe with us. * Required Fields.

       产品名称：

    		  

    * Lot #：

    * 客户姓名：

    		 

    * Email：

       电话：

    		 

    * 部门：

    * 公司或机构名称：

    		 

       留言给我们：

    Request for HNMR Report

    We have received your request and will respond to you as soon as possible.

    嗨！很高兴为您提供帮助！

    尊敬的 MCE 客户您好，
    请您选择所在区域，我们将转接对应客服为您服务！

    热门区域

    A

    B

    C

    F

    G

    H

    J

    L

    N

    Q

    S

    T

    X

    Y

    Z

    热 A B C F G H J L N Q S T X Y Z