1. Epigenetics
  2. Histone Acetyltransferase Epigenetic Reader Domain
  3. EML 425

EML425 是一种有效的选择性 CREB 结合蛋白 (CBP)/p300 抑制剂。IC50 为 2.9 和 1.1 μM。

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EML 425 Chemical Structure

EML 425 Chemical Structure

CAS No. : 1675821-32-5

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     可免费申领三个不同产品的试用装。

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规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥1210
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5 mg ¥1100
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10 mg ¥1900
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25 mg ¥4100
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50 mg ¥6500
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100 mg ¥9800
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500 mg   询价  

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Top Publications Citing Use of Products
  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

EML425 is a potent and selective CREB binding protein (CBP)/p300 inhibitor with IC50s of 2.9 and 1.1 μM, respectively.

IC50 & Target

IC50: 1.1 μM (p300), 2.9 μM (CBP)[1]

体外研究
(In Vitro)

EML 425 (EML425, Compound 7h) is a potent and selective reversible inhibitor of CBP/p300, noncompetitive versus both acetyl-CoA and a histone H3 peptide, and endows with good cell permeability. EML 425 inhibits both p300 and CBP (IC50 values of 2.9 and 1.1 μM, respectively) while being practically inactive against the enzymes general control non derepressible-5 (GCN5) and p300/CBP-associated factor (PCAF). EML 425 induces a marked and time-dependent reduction in the acetylation of lysine H4K5 and H3K9 in U937 cells. EML 425 is shown to be a reversible inhibitor, noncompetitive versus both acetyl-CoA and a histone H3 peptide, and able to bind both the free enzyme and the enzyme-substrate complex, even with unequal affinity constants. The best scoring docking poses suggest that the binding site for EML 425 is an alternative pocket lying near the substrate lysine binding groove and close to the acetylation site[1].

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

分子量

440.49

Formula

C27H24N2O4

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 2 years
-20°C 1 year
溶解性数据
In Vitro: 

DMSO 中的溶解度 : ≥ 250 mg/mL (567.55 mM; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

* "≥" means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.2702 mL 11.3510 mL 22.7020 mL
5 mM 0.4540 mL 2.2702 mL 4.5404 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, 2 years; -20°C, 1 year。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

  • 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: ≥ 2.08 mg/mL (4.72 mM); 澄清溶液

    此方案可获得 ≥ 2.08 mg/mL(饱和度未知)的澄清溶液。

    1 mL 工作液为例,取 100 μL 20.8 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。
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
参考文献
Kinase Assay
[1]

To explore the mechanisms of p300 inhibition by EML 425, reactions are performed. Each assay containing 5 nM p300, 3 μM Acetyl CoA, and 50 nM biotinylated H3 (1-21) peptide in 10 μL of assay buffer (50 mM Tris-HCl, pH 8.0, 0.1 mM EDTA, 1 mM DTT, 0.01% Tween-20, 0.01% BSA, 330 nM TSA) is incubated at room temperature for 15 min in a White opaque OptiPlate-384. Reactions are stopped by adding garcinol (final concentration 50 μM) and antiacetyl histone H3 lysine 9 (H3K9Ac) acceptor beads (final concentration 20 μg/mL). After 60 min of incubation at room temperature, 20 μg/mL final concentration of Alpha Streptavidin Donor beads are added in subdued light and incubated in the dark for 30 min at room temperature. Signals are read in Alpha mode with a Enspire plate reader[1].

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

Cell Assay
[1]

For cell cycle analysis, 500 μL of U937 cells (2.5×105 cells/mL) are seeded in 24-well plastic plates and incubated with 100 μM EML 425 for 72 h. After this period of treatment, 500 μL of hypotonic buffer (33 mM sodium citrate, 0.1% Triton X-100, 50 μg/mL propidium iodide) is added to cell suspensions. Cells are analyzed with a FACScan flow cytometer and quantitative analysis of cell cycle distribution and hypodiploid nuclei is performed using ModFit LT Macintosh software. All the experiments are performed at least in triplicate[1].

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, 2 years; -20°C, 1 year。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.2702 mL 11.3510 mL 22.7020 mL 56.7550 mL
5 mM 0.4540 mL 2.2702 mL 4.5404 mL 11.3510 mL
10 mM 0.2270 mL 1.1351 mL 2.2702 mL 5.6755 mL
15 mM 0.1513 mL 0.7567 mL 1.5135 mL 3.7837 mL
20 mM 0.1135 mL 0.5675 mL 1.1351 mL 2.8377 mL
25 mM 0.0908 mL 0.4540 mL 0.9081 mL 2.2702 mL
30 mM 0.0757 mL 0.3784 mL 0.7567 mL 1.8918 mL
40 mM 0.0568 mL 0.2838 mL 0.5675 mL 1.4189 mL
50 mM 0.0454 mL 0.2270 mL 0.4540 mL 1.1351 mL
60 mM 0.0378 mL 0.1892 mL 0.3784 mL 0.9459 mL
80 mM 0.0284 mL 0.1419 mL 0.2838 mL 0.7094 mL
100 mM 0.0227 mL 0.1135 mL 0.2270 mL 0.5675 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:
EML 425
目录号:
HY-110263
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