UNC3866
目录号 : GC17207
An inhibitor of CBX7
Cas No.:1872382-47-2
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Kinase experiment: | The effect of UNC3866 on the methyltransferase activity of G9a, EHMT1, SUV39H1, SUV39H2, SETDB1, SETD8, SUV420H1, SUV420H2, SETD7, MLL1 trimeric complex, MLL3 tetrameric complex, EZH2 trimeric complex, PRMT1, PRMT3, PRMT5-MEP50 complex, PRMT6, PRMT7, PRMT8, PRDM9, SETD2, SMYD2, SMYD3, BCDIN3D and DNMT1 is assessed by monitoring the incorporation of tritium-labeled methyl group to lysine or arginine residues of peptide substrates using Scintillation Proximity Assay (SPA). Assays are performed in a 20 μL reaction mixture containing 3H-SAM at substrate concentrations close to the Km values for each enzyme. Three concentrations (1 μM, 10 μM, and 50 μM) of UNC3866 are used in all selectivity assays. To stop the enzymatic reactions, 7.5 M Guanidine hydrochloride is added, followed by 180 μL of buffer (20 mM Tris, pH 8.0). The reactions are mixed and then transferred to a 96-well FlashPlate. The reaction mixtures in Flash plates are incubated for 1 hour and the CPM are measured using a TopCount plate reader. The CPM counts in the absence of compound for each data set are defined as 100% activity. In the absence of the enzyme, the CPM counts in each data set are defined as background (0%)[1]. |
Cell experiment: | PC3 cells are seeded at 200 cells/well into 24-well plates. Cells are allowed to adhere overnight. The media (DMEM supplemented with 10 % FBS) is then exchanged with fresh media containing DMSO, UNC3866 or UNC4219. On day three, the media are exchanged with fresh media containing DMSO, UNC3866 or UNC4219. For dose-response studies, the EC50 is derived from a six-point titration ranging from 100 μM to 0.4 μM of UNC3866 or UNC4219. At day 0, 3 or 6, cells are fixed with ice-cold methanol for 30 sec. and rehydrated with PBS. Nuclei of the cells are stained with DAPI (0.05 μg/mL) and numerated using High Content Microscopy. For dose-response studies, the cell count of UNC3866- or UNC4219-treated cells is normalized to the average cell count of DMSO-treated cells. The EC50 is calculated using the “log[inhibitor] vs. the normalized response-Variable slope” equation in GraphPad Prism 5[1]. |
References: [1]. Stuckey JI, et al. A cellular chemical probe targeting the chromodomains of Polycomb repressive complex 1. Nat Chem Biol. 2016 Mar;12(3):180-7. | |
UNC3866 is a potent antagonist of CBX4 and CBX7 chromodomains with a Kd of ~100 nM for each, and is 6- to 18-fold selective as compared to seven other CBX and CDY chromodomains. UNC3866 antagonizes the methyllysine (Kme) reading function of the Polycomb CBX and CDY families of chromodomains. [1]
UNC3866 is the most potent ligand reported for CBX7, with a Kd of 97 ± 2.4 nM. UNC3866 antagonizes the CBX7-H3 interaction, assayed by AlphaScreen (IC50 = 66 ± 1.2 nM). Affinity of UNC3866 for CBX2, CBX4, CBX6 and CBX8 is surprisingly well associated with the percent sequence identity of each chromodomain relative to that of CBX7. UNC3866 is equally potent for CBX4, which is most similar to CBX7, whereas it is 18-, 6- and 12-fold selective for CBX4 and CBX7 over CBX2, CBX6 and CBX8, respectively. UNC3866 is 65-fold selective for CBX4 and CBX7 over CDY1 and 9-fold selective for CBX4 and CBX7 over CDYL1b and CDYL2. Each backbone amide of UNC3866 engages in at least one hydrogen bond with the backbone of CBX7, while the N-terminal tert-butylbenzoyl cap of UNC3866 primarily connects the side chains of D50, R52 and L53. X-ray crystallography exhibited that interactions of UNC3866 and the CBX chromodomains closely mock those of the methylated H3 tail. UNC3866 suppresses PC3 cell proliferation, consistent with the known ability of CBX7 overexpression to confer a growth advantage. [1]
Reference:
1.A cellular chemical probe targeting the chromodomains of Polycomb repressive complex 1. Nat Chem Biol. 2016 Mar;12(3):180-7.
| Cas No. | 1872382-47-2 | SDF | |
| 化学名 | (3S,6S,9S,12S,15S)-methyl 3-benzyl-1-(4-(tert-butyl)phenyl)-12-(4-(diethylamino)butyl)-15-(hydroxymethyl)-9-isobutyl-6-methyl-1,4,7,10,13-pentaoxo-2,5,8,11,14-pentaazahexadecan-16-oate | ||
| Canonical SMILES | CC(C)(C)C1=CC=C(C(N[C@@H](CC2=CC=CC=C2)C(N[C@@H](C)C(N[C@@H](CC(C)C)C(N[C@@H](CCCCN(CC)CC)C(N[C@@H](CO)C(OC)=O)=O)=O)=O)=O)=O)C=C1 | ||
| 分子式 | C43H66N6O8 | 分子量 | 795.02 |
| 溶解度 | DMF: 33 mg/ml,DMSO: 33 mg/ml,DMSO:PBS(pH 7.2) (1:4): 0.2 mg/ml,Ethanol: 16 mg/ml | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.2578 mL | 6.2891 mL | 12.5783 mL |
| 5 mM | 0.2516 mL | 1.2578 mL | 2.5157 mL |
| 10 mM | 0.1258 mL | 0.6289 mL | 1.2578 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。