AEG 3482inhibitor of Jun kinase (JNK)-dependent apoptosis |
Sample solution is provided at 25 µL, 10mM.
Quality Control & MSDS
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- Purity = 99.57%
- COA (Certificate Of Analysis)
- HPLC
- NMR (Nuclear Magnetic Resonance)
- MSDS (Material Safety Data Sheet)
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Chemical structure
Cell experiment [1]: | |
Cell lines | PC12 neuronal cells |
Preparation method | The solubility of this compound in DMSO is > 14 mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months. |
Reacting condition | 10, 20 and 40 µM, 18 h |
Applications | AEG 3482 is a potent antiapoptotic compound. In PC12 neuronal cells AEG 3482 inhibited proapoptotic JNK activity and blocked p75NTR- and NRAGE-induced apoptosis. AEG 3482 inhibited the JNK pathway through increasing HSP70 expression. |
References: [1]. Salehi A H, Morris S J, Ho W C, et al. AEG3482 is an antiapoptotic compound that inhibits Jun kinase activity and cell death through induced expression of heat shock protein 70[J]. Chemistry & biology, 2006, 13(2): 213-223. |
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Cas No. | 63735-71-7 | SDF | Download SDF |
Chemical Name | 6-phenylimidazo[2,1-b][1,3,4]thiadiazole-2-sulfonamide | ||
Canonical SMILES | NS(C1=NN(C(S1)=N2)C=C2C3=CC=CC=C3)(=O)=O | ||
Formula | C10H8N4O2S2 | M.Wt | 280.33 |
Solubility | ≥14mg/mL in DMSO | Storage | Store at RT |
Physical Appearance | A solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. |
AEG3482 is a small-molecule inhibitor of Jun kinase (JNK)-dependent apoptosis. [1,2]
Jun kinases, also called Jun N-terminal kinase stress-activated protein kinases. Activation of the JNK signaling pathway is amajor event in neuronal apoptosis. This is proved by pathological specimens from Alzheimer’s disease, as well as samples from mouse models of Alzheimer’s and Huntington’s disease, reveal activated JNK. [2]
AEG3482 blocks apoptosis induced by the p75 neurotrophin receptor (p75NTR) or NRAGE, which is p75NTR’s cytosolic interactor,. AEG3482 inhibits proapoptotic JNK activity. AEG3482 induces production of heat shock protein 70 (HSP70) which is an endogenous inhibitor of JNK. HSP70 accumulation is required for the AEG3482-induced JNK blockade. [1]
As described, activation of C-jun N-terminal kinase (JNK) signaling is associated with neuronal cell death. AEG3482 interacts with heat shock protein 90 leading to inhibition of JNK and blockade of neuronal apoptosis. So AEG3482 can serve as useful tools for basic research, and it may have therapeutic potential for the treatment of acute and chronic neurological disorders. In the neuropathologicalstate, the chaperone-mediated stress response may be primed for response to Hsp90 inhibitors; and AEG3482, may be selective neuroprotective agents.[1,2]
References:[1]Salehi AH, Morris SJ, Ho WC, etal., AEG3482 is an antiapoptotic compound that inhibits Jun kinase activity and cell death through induced expression of heat shock protein 70. Chem Biol. 2006 Feb;13(2):213-23.[2] Gallo KA. Targeting HSP90 to halt neurodegeneration. Chem Biol. 2006 Feb;13(2):115-6.
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没有序列识别的功能,他就是简单的催化相邻DNA链的5-P末端和3'-OH末端以磷酸二酯键结合的反应,需ATP作辅酶。 不仅可以催化粘性末端之间或平滑末端之间的DNA的连接,也催化DNA与RNA之间以及少数RNA之间的连接。
反转录酶(Reversetranscripatase)是以RNA为模板指导三磷酸脱氧核苷酸合成互补DNA(cDNA)的酶。哺乳类C型病毒的反转录酶和鼠类B型病毒的反转录酶都是一条多肽链。鸟类RNA病毒的反转录酶则由两上亚基结构。真核生物中也都分离出具有不同结构的反转录酶。
在进行RT反应之前,应考虑以下几个方面:
1、RNA
成功的cDNA合成来自高质量的RNA,高质量的RNA至少应保证全长并且不含逆转录酶的抑制剂,如EDTA或SDS。在提取RNA的过程中,要特别防止RNase的污染,同时在逆转录反应中经常加入RNase抑制剂以增加cDNA合成的长度和产量。RNase抑制剂要在第一链cDNA合成反应中,在缓冲液和还原剂(如DTT)存在的条件下加入,因为cDNA合成前的过程会使抑制剂变性,从而释放结合的可以降解RNA的RNase。蛋白RNase抑制剂仅防止RNaseA,B,C对RNA的降解,并不能防止皮肤上的RNase,因此尽管使用了这些抑制剂,也要小心不要从手指上引入RNase,实验过程中经常更换新手套。
2、引物的选择
OligodT
选择OligodT时,要求RNA必须有PolyA,所以真核生物的mRNA都适用。适合长链甚至全长mRNA的RT,所以对RNA样品的质量要求较高,最好不要有明显的DNA污染、RNA降解和RNA断裂。假如想探索新的mRNA进行RT反应,建议推荐使用OligodT引物。使用OligodT引物要比随机引物和特异性引物的稳定性要好。
随机引物
适合各种RNA的RT,尤其适合模板丰度很低的情况(比如某个gene表达量很低)。选择随机引物时,第一链cDNA合成反应中就是以所有的RNA为模板,然后进行PCR反应时设计引物进行特异性扩增。同时要注意随机引物的量和总RNA量之间的关系,一般建议每5μg总RNA的随机引物的用量为50ng,如果每5μg总RNA的随机引物的用量超过250ng,可能会导致小片段产物(<500bp)的增加和长片断、全长产物产物的降低。
特异性引物
特异性引物只能用你设计引物时的下游引物做RT,引物设计质量影响RT的结果,而且不同引物退火温度本来就不相同,所以按照说明书按照一个温度做不是最佳选择,一般不推荐。向左转|向右转
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