产品说明
一般描述
A cell-permeable pyrrolylpyrrolidinyl-ethanone that inhibits the proteasome association-dependent USP14 deubiquitinase (DUB) activity in a reversible manner (IC50 = 4.7 M against Ub-AMC hydrolysis), likely by targeting USP14 active site thiol, while exhibiting little or no activity toward 8 other DUBs (<10% inhibition of IsoT, UCH37/UCH-L5, BAP1, UCH-L1, UCH-L3, USP2, USP7, and USP15 at 17 M). Shown to downregulate tau, TDP-43, ATXN3, GFAP, and free Ub levels in MEF cultures in a dose- (25 to 100 M), time-, and USP14-dependent manner. Effectively protects HEK293 cells from menadione toxicity (90% vs. 40% viability after 4 h 100 M menadione treatment, respectively, with or without 50 M IU1 pretreatment) by reducing the built-up of oxidized proteins. USP14-catalyzed trimming of protein surface polyubiquitin chains rescues proteasome-bound proteins from proteolytic degradation and thereby prevents the depletion of free ubiquitin pool in cells. Comparing to b-AP15 (Cat. No. 662140), IU1 does not inhibit UCH37/UCH-L5 (IC50 = 700 M).
A cell-permeable pyrrolylpyrrolidinyl-ethanone that inhibits the proteasome association-dependent USP14 deubiquitinase (DUB) activity in a reversible manner (IC50 = 4.7 µM against Ub-AMC hydrolysis), exhibiting little or no activity toward 8 other DUBs. Shown to downregulate tau, TDP-43, ATXN3, GFAP, and free Ub levels in MEF cultures in a dose- (25 to 100 µM), time-, and USP14-dependent manner. USP14-catalyzed trimming of protein surface polyubiquitin chains rescues proteasome-bound proteins from proteolytic degradation and thereby prevents the depletion of free ubiquitin pool in cells. Comparing to b-AP15 (Cat. No. 662140), IU1 does not inhibit UCH37/UCH-L5 (IC50 = 700 µM).
包装
10 mg in Glass bottle
Packaged under inert gas
警告
Toxicity: Regulatory Review (Z)
重悬
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
其他说明
Lee, B.H., et al. 2010. Nature467, 179.
法律信息
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
经验(实验)分子式 | C18H21FN2O |
分子量 | 300.37 |
MDL编号 | MFCD01917473 |
产品性质
质量水平 | 100 |
测定 | ≥90% (HPLC) |
形式 | solid |
manufacturer/tradename | Calbiochem® |
储存条件 | OK to freeze protect from light |
颜色 | beige |
溶解性 | DMSO: 50 mg/mL |
运输 | ambient |
储存温度 | 2-8℃ |
安全信息
储存分类代码 | 11 - Combustible Solids |
WGK | WGK 3 |
Sigma-Aldrich