EN4

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EN4  纯度: 96.05%

EN4 是一种针对 MYC 的半胱氨酸 171 (C171) 的共价配体。EN4 对 c-MYC 的选择性高于 N-MYC 和 L-MYC。EN4 抑制 MYC 转录活性,下调 MYC 靶标,并具有抗肿瘤作用。

EN4

EN4 Chemical Structure

CAS No. : 1197824-15-9

规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥990 In-stock
5 mg ¥900 In-stock
10 mg ¥1100 In-stock
25 mg ¥2500 In-stock
50 mg ¥3600 In-stock
100 mg ¥5400 In-stock
200 mg   询价  
500 mg   询价  

* Please select Quantity before adding items.

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生物活性

EN4 is a covalent ligand that targets cysteine 171 (C171) of MYC. EN4 is selective for c-MYC over N-MYC and L-MYC. EN4 inhibits MYC transcriptional activity, downregulates MYC targets, and impairs tumorigenesis[1].

体外研究
(In Vitro)

EN4 (1-50 μM; for 72 hours) treatment significantly impaires 231MFP breast cancer cell proliferation in a dosedependent manner, with >90% inhibition of proliferation at 50 μM[1].
EN4 (50 μM; for 60 hours) treatment significantly decreases the protein levels of representative MYC-regulated target genes, including CDK2 and CDC25A. EN4 treatment also substantially reduces MYC levels[1].
EN4 shows the strongest inhibition of both MYC/MAX binding to its DNA consensus sequence in vitro as well as MYC transcriptional activity in cells. EN4 inhibited MYC/MAX binding to the E-box response element DNA consensus sequence in a dose-responsive manner with an IC50 value of 6.7 μM. EN4 also inhibits MYC luciferase reporter activity in a dose-responsive manner with an IC50 value of 2.8 μM[1].
EN4 (50 μM; for 2 hours) treatment significantly reduced MYC thermal stability in 231MFP breast cancer cells[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Proliferation Assay[1]

Cell Line: 231MFP breast cancer cells
Concentration: 1 μM, 10 μM, 50 μM
Incubation Time: 72 hours
Result: Significantly impaired 231MFP breast cancer cell proliferation in a dose-dependent manner.

Western Blot Analysis[1]

Cell Line: 231MFP breast cancer cells
Concentration: 50 μM
Incubation Time: 60 hours
Result: The protein levels of CDK2 and CDC25A were significantly lowered.

体内研究
(In Vivo)

EN4 (50 mg/kg; intraperitoneal injection; daily; for 3 weeks) treatment significantly attenuated tumor growth in 231MFP breast tumor xenograft mice[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: SCID mice injected with 231MFP breast cancer cells[1]
Dosage: 50 mg/kg
Administration: Intraperitoneal injection; daily; for 3 weeks
Result: Significantly attenuated tumor growth in vivo.

分子量

416.47

Formula

C25H24N2O4

CAS 号

1197824-15-9

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据
In Vitro: 

DMSO : 250 mg/mL (600.28 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.4011 mL 12.0057 mL 24.0113 mL
5 mM 0.4802 mL 2.4011 mL 4.8023 mL
10 mM 0.2401 mL 1.2006 mL 2.4011 mL

*

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 (protect from light)。-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。

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

  • 1.

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

    Solubility: 2.08 mg/mL (4.99 mM); Suspended solution; Need ultrasonic

    此方案可获得 2.08 mg/mL (4.99 mM) 的均匀悬浊液,悬浊液可用于口服和腹腔注射。

    以 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;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液

  • 2.

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

    Solubility: 2.08 mg/mL (4.99 mM); Suspended solution; Need ultrasonic

    此方案可获得 2.08 mg/mL (4.99 mM) 的均匀悬浊液,悬浊液可用于口服和腹腔注射。

    以 1 mL 工作液为例,取 100 μL 20.8 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。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
  • 3.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.08 mg/mL (4.99 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (4.99 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Lydia Boike, et al. Discovery of a Functional Covalent Ligand Targeting an Intrinsically Disordered Cysteine within MYC. Cell Chem Biol. 2021 Jan 21;28(1):4-13.e17.

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