
Molecular Weight: | 384.39 |
Formula: | C22H16N4O3 |
Purity: | ≥98% |
CAS#: | 301836-41-9 |
Solubility: | DMSO up to 100mM |
Chemical Name: | 4-(4-(benzo[d][1,3]dioxol-5-yl)-5-(pyridin-2-yl)-1H-imidazol-2-yl)benzamide |
Storage: | Powder:4oC 1 year. DMSO:4oC3 month;-20oC 1 year. |
Biological Activity:
SB-431542 is a potent and selective inhibitor of TGF-β type I receptors ALK5 (IC50 ~94 nM), ALK4 (IC50 ~140 nM) and ALK7. It has no activities on the other ALK family members such as ALK2, ALK3 and ALK6, nor on components of the ERK, JNK, and p38 MAP kinase pathways. It specifically blocks Smad2 signaling, modulating gene expression related to EMT.In several publications SB-431542 has been used to enhance iPSC reprogramming, induce neural differentiation of human pluripotent stem cells, and promote naïve state of pluripotent stem cells.
How to Use:
- In vitro:SB-431542 was used at 10 µM concentration in cell culture.
- In vivo: SB-431542 was intraperitoneally dosed to mice at 10 mg/kg once per day.
Reference:
- 1.Laping NJ, et al. Inhibition of transforming growth factor (TGF)-beta1-induced extracellular matrix with a novel inhibitor of the TGF-beta type I receptor kinase activity: SB-431542. (2002) Mol Pharmacol.; 62(1):58-64.
- 2.Inman GJ, et al. SB-431542 is a potent and specific inhibitor of transforming growth factor-β superfamily type I activin receptor-like kinase (ALK) receptors ALK4, ALK5, and ALK7. (2002) Mol Pharmacol.; 62(1):65–74.
- 3.Lin T, et al. A chemical platform for improved induction of human iPSCs. Nature Methods 6, 805 - 808 (2009).
- 4.Chambers SM, et al. Highly efficient neural conversion of human ES and iPS cells by dual inhibition of SMAD signaling. (2009) Nat Biotechnol.;27(3):275-80.
- 5.Li W, et al. Rapid induction and long-term self-renewal of primitive neural precursors from human embryonic stem cells by small molecule inhibitors. (2011) PNAS;108(20):8299-304
- 6.Chambers SM, et al. Combined small-molecule inhibition accelerates developmental timing and converts human pluripotent stem cells into nociceptors. (2012) Nat Biotechnol. In press.
SB431542_spec.pdf
SB431542_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!

