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Merck
CN

E3132

Sigma-Aldrich

E-64

protease inhibitor

别名:

-环氧丁二酰基-L-亮氨酰胺基(4-胍基)丁烷, L--3-羧基环氧乙烷-2-羰基)-L-亮氨酰胍基丁胺, N-(反式-环氧丁二酰基)-L-亮氨酸-胍基丁基酰胺

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About This Item

经验公式(希尔记法):
C15H27N5O5
CAS号:
分子量:
357.41
Beilstein:
1405664
MDL编号:
UNSPSC代码:
12352202
PubChem化学物质编号:
NACRES:
NA.77

生物来源

synthetic (organic)

质量水平

检测方案

≥98% (HPLC)

形式

powder

溶解性

water: 20 mg/mL, clear, colorless to faintly yellow

储存温度

2-8°C

SMILES字符串

CC(C)C[C@H](NC(=O)[C@@H]1O[C@H]1C(O)=O)C(=O)NCCCCNC(N)=N

InChI

1S/C15H27N5O5/c1-8(2)7-9(20-13(22)10-11(25-10)14(23)24)12(21)18-5-3-4-6-19-15(16)17/h8-11H,3-7H2,1-2H3,(H,18,21)(H,20,22)(H,23,24)(H4,16,17,19)/t9-,10+,11+/m0/s1

InChI key

LTLYEAJONXGNFG-HBNTYKKESA-N

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一般描述

E-64 是从霉菌 日本曲霉 TPR-64中分离出来的半胱氨酸蛋白酶抑制剂。 E-64 又称N-[N-(L-3-反式-羧氧吡喃-2-羰基)-L-亮氨酰]-胍丁胺。E-64可以有效抑制各种半胱氨酸蛋白酶,特别是:
  • 组织蛋白酶K
  • 组织蛋白酶L
  • 组织蛋白酶S
E-64还可以对抗其他酶,例如:
  • 钙蛋白酶
  • 组织蛋白酶B
  • 组织蛋白酶H
  • 木瓜蛋白酶

应用

E-64是亲和纯化半胱氨酸蛋白酶的有效配体。当与硫醇化亲和基质偶联时,结合将成为可逆的,但保留了特异性。

生化/生理作用

E-64是一种不可逆的、强效的、高选择性半胱氨酸蛋白酶抑制剂。E-64不与非蛋白酶的功能性硫醇基团反应,如 L-乳酸脱氢酶或肌酸激酶。与亮抑酶肽和抗蛋白酶肽等其他半胱氨酸蛋白酶抑制剂不同,E-64不会抑制丝氨酸蛋白酶(胰蛋白酶除外)。E-64的反式环氧琥珀酰基(活性部分)不可逆地与许多半胱氨酸蛋白酶的活性巯基结合,如木瓜蛋白酶、猕猴桃酶和组织蛋白酶B、H和L,从而形成硫醚键。 E-64是一种非常有用的半胱氨酸蛋白酶抑制剂,具有特异性抑制作用,在细胞和组织中具有渗透性,毒性低,可用于 体内 研究。

制备说明

E-64可溶于水。可配制成20 mg/ml的水溶液(可能需要加热)。 建议储备溶液是1 mM水溶液。用作蛋白酶抑制剂的有效浓度为1至10 μM。 水溶液储备溶液可在-20°C稳定保存数月。稀释液可在中性pH体系中稳定保存数天。 E-64在pH 2-10体系中稳定,但在氨水或HCl体系中不稳定。 E-64也溶于DMSO,可使用无水DMSO制备10 mM溶液并储存在-20℃。使用培养基进行后续稀释。将E-64溶解在0.9%氯化钠溶液中或溶解在最少量的饱和碳酸氢钠溶液中并用0.9%氯化钠稀释(用乙酸调节pH至7.0),可制备注射液。

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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Thomas Gobbetti et al.
The American journal of pathology, 180(1), 141-152 (2011-11-10)
Proteases and proteinase-activated receptor (PAR) activation are involved in several intestinal inflammatory conditions. We hypothesized that serine proteases and PAR activation could also modulate the intestinal injury induced by ischemia-reperfusion (I-R). C57Bl/6 mice were subjected to 90 minutes of intestinal
P M C Scaffa et al.
Journal of dental research, 91(4), 420-425 (2012-01-24)
The co-expression of MMPs and cysteine cathepsins in the human dentin-pulp complex indicates that both classes of enzymes can contribute to the endogenous proteolytic activity of dentin. Chlorhexidine (CHX) is an efficient inhibitor of MMP activity. This study investigated whether
L Latonen et al.
Oncogene, 30(7), 790-805 (2010-10-20)
The ubiquitin-proteasome pathway is essential for most cellular processes, including protein quality control, cell cycle, transcription, signaling, protein transport, DNA repair and stress responses. Hampered proteasome activity leads to the accumulation of polyubiquitylated proteins, endoplastic reticulum (ER) stress and even
F D Nascimento et al.
Journal of dental research, 90(4), 506-511 (2011-01-21)
Matrix metalloproteinases (MMPs) are important in dentinal caries, and analysis of recent data demonstrates the presence of other collagen-degrading enzymes, cysteine cathepsins, in human dentin. This study aimed to examine the presence, source, and activity of cysteine cathepsins in human
Verena Puxbaum et al.
Journal of hepatology, 57(2), 337-343 (2012-04-24)
The mannose 6-phosphate/insulin-like growth factor II receptor (M6P/IGF2R), a multifunctional protein, plays a central role in intracellular targeting of lysosomal enzymes and control of insulin-like growth factor II (IGF-II) bioactivity. Importantly, the gene encoding this receptor is frequently inactivated in

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