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N-Ethylmaleimide
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
N-Ethylmaleimide图片
CAS NO:128-53-0
包装与价格:
包装价格(元)
10 mM * 1 mL in DMSO电议
10mg电议
50mg电议
100mg电议

产品名称
n-乙基马来酰亚胺
NEM
产品介绍
N-Ethylmaleimide (NEM) 衍生于马来酸,能烷基化游离巯基,是一种不可逆的半胱氨酸蛋白酶抑制剂。N-Ethylmaleimide 特异的抑制线粒体中的磷酸盐转运。N-Ethylmaleimid 对脯氨酰内肽酶有抑制作用,其IC50值为6.3 μM。N-Ethylmaleimide 可用于修饰蛋白质和多肽中的半胱氨酸残基。
生物活性

N-Ethylmaleimide (NEM) derives from maleic acid, it can alkylates free sulfhydryl. N-Ethylmaleimide is an irreversiblecysteine proteaseinhibitor. N-ethylmaleimide specific inhibits phosphate transport in mitochondria. N-Ethylmaleimide inhibitsprolyl endopeptidasewith anIC50value of 6.3 μM. N-Ethylmaleimide can be used to modify cysteine residues in proteins andpeptides[1][2][3].

IC50& Target

IC50: 6.3 μM (prolyl endopeptidase)[2]

体外研究
(In Vitro)

N-Ethylmaleimide (20 μM;30 min) inhibits Akt Ser-473, Akt Thr-308 , p70S6K, ribosomal protein S6, 4E-BP1, eIF4E, BAD and FKHR-L1 phosphorylation[2].
N-Ethylmaleimide (20 μM;30 min) affects conversion of pro-caspase-3 in vascular smooth muscle cells[2].
N-Ethylmaleimide (20 μM;6 h) promotes vascular smooth muscle cells apoptosis[2].
N-Ethylmaleimide (20 μM;30 min) affects PP2A activity and ROS production in vascular smooth muscle cells[2].

Western Blot Analysis[2]

Cell Line:Vascular smooth muscle cells
Concentration:20 μM
Incubation Time:2 hours
Result:Effectively inhibited platelet-derived growth factor-BB (PDGF-BB)-stimulated Akt Ser-473 , Akt Thr-308, p70S6K, ribosomal protein S6, 4E-BP1, BAD and FKHR-L1 phosphorylation with a concentration of 20 μM.

Western Blot Analysis[2]

Cell Line:Vascular smooth muscle cells
Concentration:20 μM
Incubation Time:2 hours
Result:Increased of 1.8-fold in the conversion of pro-caspase-3 into active form, and showed better effect with 20 ng/ml PDGF-BB adding.

Apoptosis Analysis[2]

Cell Line:Vascular smooth muscle cells
Concentration:20 μM
Incubation Time:6 hours
Result:Induced vascular smooth muscle cells apoptosis by 3-fold, and exhibited 5-fold apoptosis with 20 ng/ml PDGF-BB adding.

Cell Viability Assay[2]

Cell Line:Vascular smooth muscle cells
Concentration:20 μM
Incubation Time:30 min
Result:Increased PP2A activity 1.7-flod and increased ROS production 2-fold in vascular smooth muscle cells.
体内研究
(In Vivo)

N-Ethylmaleimide (10 mg/kg; i.h.) promotes the prevalence situation of mice with acute gastric ulcers[3].

Animal Model:Male Wistar rats with acute gastric ulcers induced by absolute ethanol injection[3]
Dosage:10 mg/kg
Administration:Subcutaneous injection; 10 mg/kg once
Result:Increased the lesion area of acute gastric ulcers and attenuated the gastroprotective effect of PAG in rats.
Clinical Trial
分子量

125.13

性状

<43℃ Solid,>46℃ Liquid

Formula

C6H7NO2

CAS 号

128-53-0

中文名称

N-乙基马来酰亚胺

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 : 50 mg/mL(399.58 mM;Need ultrasonic)

H2O : 50 mg/mL(399.58 mM;Need ultrasonic)

Ethanol : 12.5 mg/mL(99.90 mM;Need ultrasonic)

配制储备液
浓度溶剂体积质量1 mg5 mg10 mg
1 mM7.9917 mL39.9584 mL79.9169 mL
5 mM1.5983 mL7.9917 mL15.9834 mL
10 mM0.7992 mL3.9958 mL7.9917 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℃, 6 months; -20℃, 1 month (protect from light)。-80℃ 储存时,请在 6 个月内使用,-20℃ 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: PBS

    Solubility: 100 mg/mL (799.17 mM); Clear solution; Need ultrasonic

  • 2.

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

    Solubility: ≥ 2.08 mg/mL (16.62 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (16.62 mM,饱和度未知) 的澄清溶液。

    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
  • 3.

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

    Solubility: ≥ 2.08 mg/mL (16.62 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (16.62 mM,饱和度未知) 的澄清溶液。

    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 μL20% 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
  • 4.

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

    Solubility: ≥ 2.08 mg/mL (16.62 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (16.62 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本网站选购。