HBX-19818 - Deubiquitinase 抑制劑 - 生命科學試劑 - MedChemExpress

1、Hotline: 400-820-3792Inhibitors Agonists Screening Librarieswww.MedChemEHBX 19818Cat. No.: HY-17540CAS No.: 1426944-49-1分式: CHClNO分量: 421.96作靶點: Deubiquitinase作通路: Cell Cycle/DNA Damage儲存式: Powder -20C 3 years4C 2 yearsIn solvent -80C 6 months-20C 1 month溶解性數據體外實驗 DMSO : 3.5 mg/mL (8.29 mM; Need ult

2、rasonic and warming)Mass Solvent1 mg 5 mg 10 mg Concentration制備儲備液1 mM 2.3699 mL 11.8495 mL 23.6989 mL5 mM 0.4740 mL 2.3699 mL 4.7398 mL10 mM - - -請根據產品在不同溶劑中的溶解度，選擇合適的溶劑配制儲備液，并請注意儲備液的保存式和期限。BIOLOGICAL ACTIVITY物活性 HBX 19818種泛素蛋特異性蛋酶 (USP7) 抑制劑，IC50 值為 28.1 M。IC50 & Target IC50: 28.1 M (USP7) 1體外研究HB

3、X 19818 is an inhibitor of USP7, with an IC50 of 28.1 M. HBX 19818 shows no effects on USP8, USP5,USP10, CYLD, UCH-L1, UCH-L3 or on SENP1, a SUMO protease, with IC50s of 200 M. HBX 19818selectively inhibits USP7 with IC50 of -6 M in in human cancer cells. In addition, HBX 19818 (1.5, 4, 12, 36,1/3 M

4、aster of Small Molecules 您邊的抑制劑師www.MedChemEor 100 M) inhibits USP7 deubiquitination of polyubiquitinated p53. HBX 19818 (30 M) also causessignificantly higher levels of Mdm2 polyubiquitinated forms in USP7-overproducing HEK293 cells than thosein DMSO-treated control cells. HBX 19818 inhibits HCT116

5、 proliferation in a dose-dependent manner, withan IC50 of -2 M 1.PROTOCOLKinase Assay 1 The ability of HBX 19818 and HBX 28,258 to inhibit a panel of deubiquitinating enzymes, including UCH-L3(13 pM), USP7 (100 pM), USP8 (1.36 nM), UCH-L1 (2.5 nM), USP5 (10 nM), USP20 (10 nM), and USP2(500 pM), is t

6、ested using the UbAMC substrate (300 nM). The potential effects of HBX 19818 and HBX28,258 are also tested on the enzymatic activities of SENP1 (80 pM), cathepsin-B (100 pM), and caspase-3(100 pM) using the SUMO1-AMC (750 nM), ZRR-AMC (3 M), and DEVD-AMC (250 nM) substrates,respectively. All enzymes

7、 are tested in USP7 reaction buffer (50 mM Tris-HCl pH 7.6, 0.5 mM EDTA, 5 mMDTT, 0.01% Triton X-100, and 0.05 mg/mL serum albumin), except for two enzymes, USP8 (same buffer butpH 8.8) and caspase-3 (100 mM HEPES pH 7.5, 10% sucrose, and 0.1% CHAPS). All enzymes are pre-incubated with DMSO or compo

8、unds (including HBX 19818) for 30 min at room temperature, and theenzymatic reaction is initiated by adding the substrate of interest. The reaction mixture is incubated at roomtemperature for 1 hr, and the reaction is stopped by adding acetic acid (100 mM). The reactions aremonitored using the PHERA

9、star 1.MCE has not independently confirmed the accuracy of these methods. They are for reference only.Cell Assay 1 HCT116 cell proliferation is evaluated by incubating HCT116 cells for 30 min in culture medium containing 10M 5- bromo-2-deoxyuridine (BrdU), which is incorporated into the DNA of proli

10、ferating cells. Cells are thenharvested by trypsin treatment, collected by centrifugation, and the pellet is resuspended and incubated in70% ethanol for 30 min at 4C. After centrifugation and supernatant removal, DNA is denaturated byincubating it in 2 N HCl for 30 min at room temperature. The perce

11、ntage of BrdU-containing cells is thendetermined by flow cytometry, making it possible to quantify proliferating cells. Cell cycle is evaluated aftertreatment with HBX 19818 for 24 hr, followed by fixing detached cells and trypsinized cells in 70% ethanol for30 minutes at 4C. Cells are then incubate

12、d in PBS supplemented with 1% BSA, 0.5% Tween 20, 50 g/mLRNase A and 50 g/mL propidiumiodide for 30 minutes at 37C. Samples are analyzed on a FACSortfluorocytometer. The percentage of cells in the different phases of the cell cycle is calculated using Multicyclesoftware 1.MCE has not independently c

13、onfirmed the accuracy of these methods. They are for reference only.戶使本產品發(fā)表的科研獻 Cell Metab. 2019 May 7;29(5):1166-1181.e6. Nat Chem Biol. 2017 Dec;13(12):1207-1215. Nat Struct Mol Biol. 2016 Apr;23(4):270-7. Mol Cell Biol. 2015 Apr 1;35(7):1157-68. Dev Growth Differ. 2019 Jan 10.See more customer validations on HYPERLINK / www.MedChemE2/3 Master of Small Molecules 您邊的抑制劑師www.MedChemEREFERENCES1. Reverdy C, et al. Discovery of specific inhibitors of human USP7/HAUSP deubiquitinating enzyme. Chem Biol. 2012 Apr 20;19(4):46