| Product Name | SensoLyte ® pNPP Protein Phosphatase Assay Kit *Colorimetric* |
| Size | 1 kit |
| Catalog # | AS-71105 |
| US$ | $268 |
Protein phosphatases have received great attentions as drug-screening targets. p-Nitrophenyl phosphate (pNPP) is proven to be an effective chromogenic substrate for protein tyrosine phosphatases and serine/threonine phosphatases. SensoLyte® pNPP Protein Phosphatase Assay Kit uses pNNP to quantify protein phosphatase activities. The kit can be used for characterizing kinetics of enzyme reaction and high throughput screening of protein phosphatase inhibitors. It has high sensitivity and wide linear range (The detection limit is generally 3 ng or below). The kit contains: pNNP chromogenic substrate Protein phosphatase inhibitor Assay buffer A "mix and read" assay protocol that is compatible with HTS liquid handling instruments Kit size: 500 assays | |
| Detailed Information | |
| Storage | -20°C |
| References | Ref: Urbanek RA et al (2001) Potent reversible inhibitors of the protein tyrosine phosphatase CD45. J Med Chem. 44, 1777-93; Marley AE et al (1996) Biochemical characterization and deletion analysis of recombinant human protein phosphatase 2C alpha. Biochem J. 320, 801-6. |
| Molecular Weight | N/A |
| Product Citations | Linford, AS. et al. (2014). Crystal structure and putative substrate identification for the Entamoeba histolytica low molecular weight tyrosine phosphatase. Mol Biochem Parasitol 193, 33.Rebollo, A. et al. (2014). Liquid fructose downregulates Sirt1 expression and activity and impairs the oxidation of fatty acids in rat and human liver cells. Biochim Biophys Acta (BBA)-Mol Cell Biol Lipids 1841, 514.Okon, IS. et al. (2014). Liver kinase B1 expression promotes phosphatase activity and abrogation of receptor tyrosine kinase phosphorylation in human cancer cells. J Biol Chem 289, 1639.Uhrig, R. et al. (2011). Two ancient bacterial-like PPP family phosphatases from arabidopsis are highly conserved plant proteins that possess unique properties. Plant Physiology 157, 1778-1792.Lin, C. et al. (2010). Impaired dephosphorylation renders G6PD-knockdown HepG2 cells more susceptible to H2O2-induced apoptosis. Free Radical Biol Med 49, 361.Svensson, M. et al. (2009). Heat Stabilization of the Tissue Proteome: A New Technology for Improved Proteomics. J Proteome Res 8, 974.Cho, Y. et al. (2008). Tyrosine phosphatase SHP-1 in oxidative stress and development of allergic airway inflammation. Am J Respir Cell Mol Biol 39, 412. doi: 10.1165/rcmb.2007-0229OCCoyne, CB. et al. (2007) Poliovirus entry into human brain microvascular cells requires receptor-induced activation of SHP-2. EMBO J 26, 4016. doi: 10.1038/sj.emboj.7601831 |
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多谢……
各位大侠:小弟最近做个长片段的CDNA与T载体的连接,片段大小6.4K,载体选用的是pUC19和pGEMT-easy,反转录酶用的是RevertAidTirstStrandcDNASynthesisKit(#K1621),CDNA第二链的扩增用的是LATaq。我是用纯病毒的RNA做模板,操作步骤严格按照说明做的,也曾经有一次获得过电泳图清晰显示的是全长6.4KB左右的片段,与载体连接,结果筛选到的几个克隆,插入的片段仅有2KB左右,奈何?可最近几次再用此反转录试剂盒却不能得到所需片段。在此,小弟想问问大家,你们是否遇到同样的问题,是如何解决的?所用的试剂(载体和酶的选择)和方法是什么,可以告诉后来者,共同进步吧。

