生物活性 | |||
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靶点 |
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描述 | MEKs, which are members of the MAPKK family, can activate both ERK1 and ERK2 by catalyzing the phosphorylation on T202/Y204. Also MEK itself can be phosphorylated and activated through Ras when the upstream signaling is activated by extracellular stimuli, including growth factors, hormones etc.. PD98059 is MEK1/2-specific inhibitor with IC50=~10uM (measured by phosphorylation level of MAPK-KA catalyzed by GST-MEK1) with no effect on ERK. Pre-incubation of PD98059 can inhibit PDGF-stimulated tyrosine phosphorylation of MAPK while preventing thymidine incorporation with an IC50 of 7 uM in 3T3 cells. PD98059 did not show significant inhibitory activity on Raf kinase, cAMP-dependent kinase, protein kinase C, v-Src, EGF receptor kinase, insulin receptor kinase, PDGFreceptor kinase, and PI3Ks, which shows the high selectivity of it [1]. PD98059 is the first generation small molecule inhibitors of MEK1/2. PD98059 does not interfere with Raf access to MEK1/2 for it did not affect serum-induced MEK1/2 phosphorylation [2]. | ||
作用机制 | PD 098059 does not complete for ATP binding or MAPK binding to MEK and most likely inhibits through an allosteric mechanism.[1] |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
7402 | 30 μM | Apoptosis Assay | 5 d | decreases cell proliferation | 24211253 |
7721 | 30 μM | Apoptosis Assay | 5 d | decreases cell proliferation | 24211253 |
786-O | 50 μM | Apoptosis Assay | 24 h | potentiates the pro-apoptotic effects of NC | 24508476 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
3.74mL 0.75mL 0.37mL |
18.71mL 3.74mL 1.87mL |
37.41mL 7.48mL 3.74mL |