FM-381

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FM-381

CAS No. : 2226521-65-7

MCE 国际站：FM-381

产品活性：FM-381 是有效，共价，可逆的 JAK3 抑制剂，靶向 Cys909 位点。FM-381 对 JAK3 的 IC₅₀ 值为127 pM，选择性分别比 JAK1，JAK2 和 TYK2 高 410，2700 和 3600 倍。

研究领域：Epigenetics  |  Protein Tyrosine Kinase/RTK  |  JAK/STAT Signaling  |  Stem Cell/Wnt

作用靶点：JAK

In Vitro: FM-381 is screened against a panel of 410 kinases at concentrations of 100 nM and 500 nM. FM-381 has no relevant effect on the activity of any tested kinases except JAK3 at a concentration of 100 nM. At 500 nM, FM-381 moderately inhibits 11 other kinases besides JAK3 with residual activities below 50%. FM-381 is found to be inactive in a selectivity panel of frequently hit BRDs (BRD4, BRPF, CECR, FALZ, TAF1, BRD9). FM-381 selectively inhibits JAK3 signaling in human CD4⁺ T Cells. FM-381 shows an apparent EC₅₀ of 100 nM in a dose dependent BRET assay and blocks IL2 stimulated (JAK3/JAK1 dependent) STAT5 phosphorylation at 100 nM, but not JAK3 independent IL6 (JAK1/2/TYK dependent) stimulated STAT3 signalling in human CD4⁺ T cells up to 1 µM.

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