FMK 9a

产品说明书

Print
Chemical Structure| 1955550-51-2 同义名 : -
CAS号 : 1955550-51-2
货号 : A723647
分子式 : C23H21FN2O3
纯度 : 98%
分子量 : 392.42
MDL号 : MFCD31382128
存储条件:

Pure form Inert atmosphere, 2-8°C

In solvent -20°C:3-6个月-80°C:12个月

溶解度 :

DMSO: 200 mg/mL(509.65 mM),配合低频超声助溶,注意:DMSO长时间开封后,会吸水并导致溶解能力下降,请避免使用长期开封的DMSO

生物活性
描述 ATG4 or autophagins are a class of cytosolic cysteine proteases that cleave ATG8 family proteins. ATG4 plays essential roles in the formation and maturation of autophagosomes[2]. FMK 9a is a potent inhibitor of ATG4B and ATG4A with IC50 values of 0.23 and 0.36 μM, respectively. FMK 9a exhibits strong binding affinity for both full-length ATG4B and ATG4BC74S with KDs of 3.89 μM and 3.24 μM, respectively. In vitro, FMK 9a (1 μM) could almost entirely inhibit ATG4B activity in HeLa cells in a very short time. FMK 9a could efficiently accumulate LC3-II in dose-dependent manner both in HeLa and MEF cells. Meanwhile, FMK 9a also induced LC3-II accumulation in a time-dependent manner and showed the best effect at 6 hrs[3]. FMK 9a exhibits moderate solubility and high human and mouse liver microsome clearances of 13.9 and 70 mL/min/kg, respectively[2].
作用机制 FMK 9a forms an irreversible covalent bond with the more reactive thiol group of Cys74 located at the catalytic site of ATG4B[2].
实验方案
1mg 5mg 10mg

1 mM

5 mM

10 mM

2.55mL

0.51mL

0.25mL

12.74mL

2.55mL

1.27mL

25.48mL

5.10mL

2.55mL

参考文献

[1]Qiu Z, et al. Discovery of Fluoromethylketone-Based Peptidomimetics as Covalent ATG4B (Autophagin-1) Inhibitors. ACS Med Chem Lett. 2016 Jun 25;7(8):802-6.

[2]Qiu Z, et al. Discovery of Fluoromethylketone-Based Peptidomimetics as Covalent ATG4B (Autophagin-1) Inhibitors. ACS Med Chem Lett. 2016 Jun 25;7(8):802-6

[3]Chu J, et al. ATG4B inhibitor FMK-9a induces autophagy independent on its enzyme inhibition. Arch Biochem Biophys. 2018 Apr 15;644:29-36