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Epoxomicin 目录号 GC12494

Proteasome inhibitor

规格 价格 库存 购买数量
10mM (in 1mL DMSO)
¥3,434.00
现货
1mg
¥1,029.00
现货
5mg
¥2,804.00
现货
20mg
¥8,715.00
现货

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Sample solution is provided at 25 µL, 10mM.

质量管理

Quality Control & SDS

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实验参考方法

Cell experiment:[1]

Cell lines

HEK293T cells

Preparation method

The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months.

Reaction Conditions

Incubated at 0.2 μM or 2 μM epoxomicin for 1 hour

Applications

Peptides were degraded by proteasome from cytosolic, mitochondrial, and nuclear proteins. Epoxomicin is a proteasome inhibitor. It decreased the levels of the majority of intracellular peptides, companying with inhibition of the proteasome beta-2 and beta-5 subunits in HEK293T cells.

Animal experiment:[2]

Animal models

C57BL6

Dosage form

Epoxomicin (0.58 mg/kg) solubilized in 10% DMSO/PBS were injected i.p. daily for 6 days 

Applications

Epoxomicin reduced inflammation in response to picrylchloride. Epoxomicin potently inhibited the irritant-associated inflammatory response by 95% when ear edema measurements were made 24 hr postchallenge.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

1. Fricker LD1, Gelman JS, Castro LM et al. Peptidomic analysis of HEK293T cells: effect of the proteasome inhibitor epoxomicin on intracellular peptides. J Proteome Res. 2012 Mar 2;11(3):1981-90.

2. Meng L1, Mohan R, Kwok BH et al. Epoxomicin, a potent and selective proteasome inhibitor, exhibits in vivo antiinflammatory activity. Proc Natl Acad Sci U S A. 1999 Aug 31;96(18):10403-8.

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化学数据

Cas No. 134381-21-8 SDF
别名 Epoxomicin,BU4061T,BU-4061T
化学名 (2S,3S)-2-[[(2S,3S)-2-[acetyl(methyl)amino]-3-methylpentanoyl]amino]-N-[(2S,3R)-3-hydroxy-1-[[(2S)-4-methyl-1-[(2R)-2-methyloxiran-2-yl]-1-oxopentan-2-yl]amino]-1-oxobutan-2-yl]-3-methylpentanamide
Canonical SMILES CCC(C)C(C(=O)NC(C(C)O)C(=O)NC(CC(C)C)C(=O)C1(CO1)C)NC(=O)C(C(C)CC)N(C)C(=O)C
分子式 C28H50N4O7 分子量 554.7
溶解度 ≥27.74mg/mL in DMSO 储存条件 Store at -20°C
一般建议 为了使其更好的溶解,请用37℃加热试管并在超声波水浴中震动片刻。溶液形式可以在-20℃下储存几个月。
运输条件 所有可选规格:常温运输或根据产品储存温度要求用蓝冰运输。

产品描述

Epoxomicin was originally isolated from the culture medium of an Actinomycetes strain based on its in vivo antitumor activity against murine B16 melanoma. Epoxomicin is a naturally occurring selective proteasome inhibitor with anti-inflammatory activity. [1] Epoxomicin primarily inhibits the activity of CTRL (chymotrypsin-like proteasome).

The novel α-epoxy ketone moiety of Epoxomicin forms covalent bonds with residues in particular catalytic subunits of the enzyme, disabling activity. The trypsin-like and peptidyl-glutamyl peptide hydrolyzing behaviors of the proteasome were both inhibited by Epoxomicin as well (at 100 and 1,000-fold slower rates, respectively). The ubiquitin-proteasome pathway heavily regulates bone formation, and Epoxomicin was shown to increase both bone volume and bone formation rates in rodents.

Another study demonstrates that exposure to Epoxomicin and other proteasome inhibitors leads to dopaminergic cell death, producing a model of Parkinson's disease in vivo. Epoxomicin is an inhibitor of 20S Proteasome. [2]

References:
1. Meng, L; Mohan, R; Kwok, BH; Elofsson, M; Sin, N; Crews, CM (1999). "Epoxomicin, a potent and selective proteasome inhibitor, exhibits in vivo antiinflammatory activity". PNAS 96 (18): 10403–10408.
2. Epoxomicin, Santa Cruz Biotechnology.