PYR-41是特异的可渗透入细胞的泛素激活酶E1抑制剂,IC50< 10 uM,对E2几乎无活性。
PYR-41 is the first cell-permeable inhibitor of ubiquitin-activating enzyme E1, with no activity at E2. Cell-permeable, irreversible ubiquitin-activating enzyme (E1) inhibitor (IC50 < 10 μM). Blocks ubiquitylation and prevents ubiquitin-mediated proteasomal degradation. Inhibits NF-κB activation, blocks degradation of p53, increases p21 levels and induces apoptosis in vitro. Also causes an increase in sumoylation of proteins.
动物 A (mg/kg) = 动物 B (mg/kg)×动物 B的Km系数/动物 A的Km系数 | |
例如,已知某工具药用于小鼠的剂量为88 mg/kg , 则用于大鼠的剂量换算方法:将88 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到该药物用于大鼠的等效剂量44 mg/kg。
[1] Yang Y, et al. Cancer Res, 2007, 67(19), 9472-9481.
[2] Brahemi et al (2010) Homology modelling of human E1 ubiquitin activating enzyme. Lett.Drug Des.Discov. 7 57.
[3] Mi et al (2009) Cancer preventative isothiocyanates induce selective degradation of cellular α- and β-tubulins by proteasomes. J.Biol.Chem. 284 17039.
分子式 C17H13N3O7 |
分子量 371.3 |
CAS号 418805-02-4 |
储存方式 ﹣20 ℃冷藏长期储存。冰袋运输 |
溶剂(常温) |
DMSO 100 mM |
Water <1 mg/mL |
Ethanol <1 mg/mL |
体内溶解度
注:以上所有数据均来自公开文献,并不保证对所有实验均有效,数据仅供参考。
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