KU-55933是一种有效的，特异性ATM抑制剂，在无细胞试验中IC50/Ki为12.9 nM/2.2 nM，与DNA-PK， PI3K/PI4K， ATR和mTOR相比，对ATM具有高度选择性。KU‑55933 (ATM Kinase Inhibitor)可抑制 autophagy‑initiating kinase ULK1 的激活从而导致自噬的显著减少。
| CAS No. | 587871-26-9 |
| 生物活性 | KU-55933 is a potent ATM inhibitor with an IC50 and Ki of 12.9 and 2.2 nM, respectively, and is highly selective for ATM as compared to DNA-PK, PI3K/PI4K, ATR and mTOR. |
| 分子式 | C21H17NO3S2 |
| 分子量 | 395.49 |
| 储存条件 | Powder -20℃ 3 years |
| 溶解性数据 | DMSO : 80 mg/mL (202.28 mM; Need ultrasonic) |
| 体外研究 | KU-55933 (10 μM) blocks the ionizing radiation-induced p53 serine 15 phosphorylation. KU-55933 has a dose-dependent effect in inhibiting this ATM-dependent phosphorylation event with an estimated IC50 of 300 nM. KU-55933 ablates the ionizing radiation-induced phosphorylation of these ATM substrates. KU-55933 specifically inhibits ATM but not the other DNA damage-activated PIKKs, ATR, and DNA-PK. KU-55933 induces pATM, p53, E2F1 and pATR, noticeably upregulates the nuclear fraction of E2F1 at the 0.5 h time point. Metformin increases ATM and AMPK phosphorylation, as well as SHP protein level in primary hepatocytes, and this stimulatory effect of metformin is repressed by a specific ATM kinase inhibitor KU-55933. |
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| 纯度及产品资料 | 98% |
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