| AlsterpaulloneCDKs and GSK3β inhibitor |
Sample solution is provided at 25 µL, 10mM.
Nature.2017 Jan 19;541(7637):417-420.
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- View current batch:
- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
Chemical structure
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| Cas No. | 237430-03-4 | SDF | Download SDF |
| Synonyms | 9-Nitropaullone,NSC 705701 | ||
| Chemical Name | 9-nitro-7,12-dihydrobenzo[2,3]azepino[4,5-b]indol-6(5H)-one | ||
| Canonical SMILES | O=C1CC2=C(C3=CC=CC=C3N1)NC4=C2C=C(C=C4)[N+]([O-])=O | ||
| Formula | C16H11N3O3 | M.Wt | 293.28 |
| Solubility | Soluble in DMSO | Storage | Store at -20°C |
| Physical Appearance | Yellow to brown powder | 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. | ||
Alsterpaullone is a small molecule cyclin-dependent kinase (CDK) inhibitor [1,2].
Cyclin-dependent kinases (CDKs) are protein kinases that play important roles in the control of cell division and modulate transcription in response to several extra- and intracellular cues. Deregulation of CDKs is a hallmark of several diseases, including cancer, and drug-targeted inhibition of specific members has generated very encouraging results in clinical trials [3].
Alsterpaullone (Alp) induced apoptosis and promoted loss in clonogenicity in the Jurkat cell line. Alp activated both caspase-8 and -9, leading to cleavage of caspase-3 and poly (ADP-ribose) polymerase (PARP). Alp disrupted the activation of caspase-9 followed mitochondrial perturbation. Alp activated caspase-9 via mitochondrial perturbation [1]. Alsterpaullone regulated the cell cycle progression. Alsterpaullone inhibited HeLa cells in a time-dependent (0–72 h) and dose-dependent (0–30 μM) manner. Alsterpaullone arrested HeLa cells in G2/M prior to undergoing apoptosis via a mechanism that is involved in the regulation of various antiapoptotic genes, DNA-repair, transcription, and cell cycle progression. Alsterpaullone effectively prevented HeLa cells from entering S-phase [2].
References:[1] Lahusen T, De Siervi A, Kunick C, et al. Alsterpaullone, a novel cyclin‐dependent kinase inhibitor, induces apoptosis by activation of caspase‐9 due to perturbation in mitochondrial membrane potential[J]. Molecular carcinogenesis, 2003, 36(4): 183-194.[2] Cui C, Wang Y, Wang Y, et al. Alsterpaullone, a cyclin-dependent kinase inhibitor, mediated toxicity in HeLa cells through apoptosis-inducing effect[J]. Journal of analytical methods in chemistry, 2013, 2013.[3] Malumbres M. Cyclin-dependent kinases[J]. Genome biology, 2014, 15(6): 122.
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利用NheI和HindIII双酶切插入目的片段，为什么双酶切有目的片段和切开的质粒，测序却没有？
并且测序后在NheI位点后的序列变成了-GGCTAGGTAC-Kpn位点（CGTTTAAACTTAAGCTTG消失。之前和之后的序列都相符），之间的怎么都没了？
请教高人，这样的问题怎么解决？
多谢
你所说的“测序酶”在一般情况下就是“聚合酶”。
因为目前的的测序方法主要就是借助聚合反应。
当然，有些测序方法（比如曾经的SOLiD系统）是利用连接反应，那么它用的“测序酶”肯定是连接酶。
估计，也就是这个原因有人把它。
两个基因大小分别230kb和450kb，酶切后，450kb的有目的条带，但很弱，230kb的质粒条带亮，其下方有一很微弱条带，用的酶分别是：Ncol和Spel体系是（Takara，两个酶切体系不同，用的官网推荐体系）：
NcoI1μl
Spel1μl
10×KBuffer2μl
0.1%BSA2μl
DNA3ul
灭菌水upto20μl37℃4h电泳1h
期待着高手们的指点，谢谢。
【之前构建的4个重组质粒里也有两个出现这样的问题（aagtcc变成agtcc），但是酶切能切出插入的片段】
目前问测序公司得到的答复是样品可能不是单克隆，测序结果是不准确的，建议重新挑取单克隆测序。
不知道还有没有别的方法？
●应用酶水解多肽不会破坏氨基酸，也不会发生消旋化。水解的产物为较小的肽段。向左转|向右转
