
Molecular Weight: | 572.74 |
Formula: | C34H44N4O4 |
Purity: | ≥98% |
CAS#: | 1403254-99-8 |
Solubility: | DMSO up to 100 mM |
Chemical Name: | N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-4-methyl-4'-(morpholinomethyl)-[1,1'-biphenyl]-3-carboxamide |
Storage: | Powder:4oC 1 year. DMSO:4oC3 month;-20oC 1 year. |
Biological Activity:
EPZ-6438 (E7438) is a potent and selective small molecule inhibitor of histone methyltransferase EZH2. It inhibited the activity of human PRC2-containing wild-type EZH2 with an inhibition constant (Ki) value of 2.5 ± 0.5 nM, and similar potency was observed for EZH2 proteins bearing all known lymphoma change-of-function mutations. EPZ-6438 inhibits EZH2 in a manner competitive with the substrate S-adenosylmethionine (SAM). EPZ-6438 displayed a 35-fold selectivity versus EZH1 and >4,500-fold selectivity relative to 14 other HMTs (encompassing both lysine and arginine HMTs) tested. It specifically inhibits cellular H3K27 methylation leading to selective apoptotic killing of SMARCB1 mutant MRT Cells. It also induced genes of neuronal differentiation and cell cycle inhibition while suppressing expression of Hedgehog pathway genes, MYC and EZH2. Moreover EPZ-6438 leads to complete and sustained regression of SMARCB1 mutant MRT xenografts, and sevral EZH2 mutant xenografts including WSU-DLCL2 (Y614F), Pfeiffer (Y677G), KARPAS-422 (Y641N) etc. Epizyme has initiated a Phase 1/2 clinical trials targeting the treatment of non-Hodgkin lymphoma.
How to Use:
- In vitro: EPZ-6438 was used at 1 µM final concentration in vitro and in cellular assays.
- In vivo:EPZ-6438 was orally dosed to mice at 250-500 mg/kg twice per day for 21-28 days, leaded to complete and sustained regression of SMARCB1 mutant MRT xenografts (SCID mice bearing s.c. G401 xenograft).
Reference:
- 1. Knutson SK, et al. Durable tumor regression in genetically altered malignant rhabdoid tumors by inhibition of methyltransferase EZH2. (2013) Proc Natl Acad Sci U S A. 110(19):7922-7.
- 2. Robert A Copeland. Protein methyltransferases in cancer. (2013) AACR Annual Meeting.
EPZ-6438_spec.pdf
EPZ-6438_MSDS.pdf
Products are for research use only. Not for human use.
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我做的是细胞因子的刺激和抑制某条通路后观察是否有影响,分组为空白组,空白+抑制剂,刺激组,刺激+抑制剂,最开始用的单因素方差分析,LSD-T和SNK-Q检验,但是同学说我这里面有两个处理因素,所以不能单因素方差分析,应该直接空白和空白+抑制,空白和刺激,刺激和刺激+抑制剂进行独立样本T检验,现在脑子是混乱的,拜托园子里的大神们帮我看看,感激不尽!!
天然产物,大多都有颜色,
存在干扰,多数情况下需要做样品的阴性对照,
尽量能用荧光的方法,
之前我们做过,将两个试剂盒的方法合并后,做的,
效果还可以
支原体培养则是取样后在培养基上培养,看有多少支原体菌落会长出,是比较直观和可信的结果。
总体来讲,这两种检查手段可信度都较高,结合一起,不仅可以可靠的知道有无解脲支原体感染,还能知道感染是否严重。
该试剂盒是一种时间分辨的荧光共振能量转移免疫分析,该反应是一个竞争免疫反应,即铕标的cAMP示踪复合物与体系中的cAMP竞争结合标有Alexa Fluor 647染料的cAMP抗体。铕标cAMP示踪复合物是通过Biotin标记的cAMP与铕标的抗生物素蛋白链菌素(streptavidin)与抗体的复合物紧密结合产生的。
当抗体结合到示踪剂上时,340nm的激发光激发铕标分子,导致能量转移到Alexa Fluor 647染料上,结果产生665nm的发射光。荧光的强度与样品中的cAMP含量成反比。
本试剂盒用于检测在GPCR激动剂刺激下活细胞或者细胞膜制备品产生的cAMP。对于偶联Gαs的受体,激动剂刺激导致665nm的荧光强度降低,而拮抗剂则可以逆转这一效应;对于偶联Gαi的受体,在激动剂刺激的同时用forskolin刺激cAMP产生,那么激动剂则抑制forskolin诱导的cAMP的生成,因此对照只给forskolin的细胞组可以通过665nm荧光强度的增加反应激动剂的效应。
该试剂盒的灵敏度很高,室温下反应在20h内是稳定的。本试剂盒适用于在384孔板中进行24μl的微量分析。
1. 姜黄素是一个典型的HAT抑制剂。
2. 针对P300: 在大约10年前,Cole和他的同事设计出了一种p300/CBP抑制剂,发表在nature杂志上。
希望能帮到你,望采纳!

