A-395 (A395)
目录号 : GC33187
A-395 (A395) 是一种多梳抑制复合物 2 (PRC2) 蛋白质-蛋白质相互作用的拮抗剂，有效抑制三聚体 PRC2 复合物 (EZH2-EED-SUZ12)，IC50 为 18 nM。
Cas No.:2089148-72-9
Sample solution is provided at 25 µL, 10mM.
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A-395 is a novel antagonist of Polycomb repressive complex 2 (PRC2) protein-protein interactions that potently inhibits the trimeric PRC2 complex (EZH2-EED-SUZ12) with an IC50 of 18 nM.
The embryonic ectoderm development (EED) protein is an essential subunit of Polycomb repressive complex 2 (PRC2). A-395 antagonizes of the H3K27me3 binding functions of EED. A-395 binds to EED in the H3K27me3-binding pocket, thereby preventing allosteric activation of the catalytic activity of PRC2. A-395 is capable of competing for H3K27me3 peptide binding to EED, with an IC50 of 7 nM. A-395, but not the close chemical analog A-395N, modulates activity of PRC2 in cells by potently reducing the H3K27 methyl mark in a highly selective manner. A-395 treatment inhibits both H3K27me2 and H3K27me3, with IC50 values of 390 nM and 90 nM, respectively. Furthermore, A-395 treatment results in growth inhibition of human tumor cell lines sensitive to SAM-competitive EZH2 inhibitors[1].
The embryonic ectoderm development (EED) protein is an essential subunit of Polycomb repressive complex 2 (PRC2). A-395 antagonizes of the H3K27me3 binding functions of EED. A-395 binds to EED in the H3K27me3-binding pocket, thereby preventing allosteric activation of the catalytic activity of PRC2. A-395 is capable of competing for H3K27me3 peptide binding to EED, with an IC50 of 7 nM. A-395, but not the close chemical analog A-395N, modulates activity of PRC2 in cells by potently reducing the H3K27 methyl mark in a highly selective manner. A-395 treatment inhibits both H3K27me2 and H3K27me3, with IC50 values of 390 nM and 90 nM, respectively. Furthermore, A-395 treatment results in growth inhibition of human tumor cell lines sensitive to SAM-competitive EZH2 inhibitors[1].
[1]. He Y, et al. The EED protein-protein interaction inhibitor A-395 inactivates the PRC2 complex. Nat Chem Biol. 2017 Apr;13(4):389-395.
Kinase experiment: | The embryonic ectoderm development (EED) protein is an essential subunit of Polycomb repressive complex 2 (PRC2). A-395 antagonizes of the H3K27me3 binding functions of EED. A-395 binds to EED in the H3K27me3-binding pocket, thereby preventing allosteric activation of the catalytic activity of PRC2. A-395 is capable of competing for H3K27me3 peptide binding to EED, with an IC50 of 7 nM. A-395, but not the close chemical analog A-395N, modulates activity of PRC2 in cells by potently reducing the H3K27 methyl mark in a highly selective manner. A-395 treatment inhibits both H3K27me2 and H3K27me3, with IC50 values of 390 nM and 90 nM, respectively. Furthermore, A-395 treatment results in growth inhibition of human tumor cell lines sensitive to SAM-competitive EZH2 inhibitors[1]. |
Cell experiment: | 1,000 multiple myeloma cells are seeded in each well of 96-well cell culture plates and treated with A-395 (0.001-100 μM) or DMSO control for 10 d before the cell proliferation assay. Cell proliferation assays are conducted with the CellTiter-Glo Luminescent Cell Viability Assay[1]. |
Animal experiment: | Mice[1]SCID mice are inoculated with the human Pfeiffer cell line and these xenografts are grown to size match at ∼200 mm3. Mice are subsequently treated with vehicle control, A-395 and A-395N at 300 mg/kg s.c. two times per week for 5 weeks or GSK126 at 50 mg/kg i.p. once per day for 36 d. Tumor volume is measured at different intervals and is represented by the average ± s.d. (eight mice per group)[1]. |
References: [1]. He Y, et al. The EED protein-protein interaction inhibitor A-395 inactivates the PRC2 complex. Nat Chem Biol. 2017 Apr;13(4):389-395. | |
| Cas No. | 2089148-72-9 | SDF | |
| Canonical SMILES | O=S(N1CCN(C2=CC=C([C@H]3CN(C4C(C(F)=CC=C5)=C5CC4)C[C@@H]3N(C)C)C=C2)CC1)(C)=O | ||
| 分子式 | C26H35FN4O2S | 分子量 | 486.65 |
| 溶解度 | DMSO : 100 mg/mL (205.49 mM) | 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 | 2.0549 mL | 10.2743 mL | 20.5486 mL |
| 5 mM | 0.411 mL | 2.0549 mL | 4.1097 mL |
| 10 mM | 0.2055 mL | 1.0274 mL | 2.0549 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。
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- Purity: >99.00%
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