
Molecular Weight: | 287.32 |
Formula: | C17H13N5 |
Purity: | ≥98% |
CAS#: | 446859-33-2 |
Solubility: | DMSO up to 100 mM |
Chemical Name: | 2-(5-(6-methylpyridin-2-yl)-1H-pyrazol-4-yl)-1,5-naphthyridine |
Storage: | Powder:4oC 1 year. DMSO:4oC3 month;-20oC 1 year. |
Biological Activity:
RepSox (E-616452 or SJN 2511) is a highly potent, selective inhibitor of the TGF-β type I receptor ALK5 with IC50 of 23 nM and 4 nM for ATP binding to ALK5 and ALK5 autophosphorylation, respectively. It has good selectivity for ALK5 over a range of kinases, including p38 MAPK, JNK1 and GSK3 (IC50 > 16 μM). RepSox is able to successfully replace Sox2 in reprogramming by inhibiting transforming growth factor-β (Tgf-β) signaling, which in turn induces Nanog expression. Effect of RepSox inducing reprogramming does not require chromatin remodeling. RepSox is found to be efficient at generating iPSCs.
How to Use:
- In vitro:RepSox was used at 1-25 µM final concentration in vitro and in stem cell reprogramming.
- In vivo:RepSox is able to be contribute to forming chimeric embryos in vivo when injected into blastocysts. A one-day treatment with RepSox is sufficient to replace transgenic Sox2.
Reference:
- 1. Gellibert F, et al. Identification of 1,5-naphthyridine derivatives as a novel series of potent and selective TGF-beta type I receptor inhibitors. (2004) J Med Chem. 47(18):4494-506.
- 2. Ichida JK, et al. A small-molecule inhibitor of tgf-Beta signaling replaces sox2 in reprogramming by inducing nanog. (2009) Cell Stem Cell. 5(5):491-503.
- 3. Li W, et al. Generation of rat and human induced pluripotent stem cells by combining genetic reprogramming and chemical inhibitors. (2009) Cell Stem Cell. 4(1):16-9.
- 4. Liu X, et al. Sequential introduction of reprogramming factors reveals a time-sensitive requirement for individual factors and a sequential EMT-MET mechanism for optimal reprogramming. (2013) Nat Cell Biol. 15(7):829-38.
- 5. Hou P, et al. Pluripotent stem cells induced from mouse somatic cells by small-molecule compounds. (2013) Science. 341(6146):651-4.
RepSox_spec.pdf
RepSox_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!

