Singly labeled smart probes for real-time monitoring of the kinetics of dNTP misincorporation and single nucleotide extension in DNA intra-molecular polymerization
文献类型：期刊论文
| 作者 | Song, Chen; Zhang, Chen; Zhao, Meiping |
| 刊名 | biosensors & bioelectronics
 |
| 出版日期 | 2009-10-15 |
| 卷号 | 25期号:2页码:301-305 |
| 关键词 | Singly labeled smart probe Polymerase Klenow fragment Misincorporation Single nucleotide extension |
| 英文摘要 | in this paper, a simple and rapid method was developed for real-time monitoring of the kinetics of dntp misincorporation and single nucleotide extension in dna intra-molecular polymerization by using singly labeled fluorophore-oligonucleotide smart probes. the probes are designed with a self-complementary t-end and a sequence of stacked cytosines at the 5'-end, to which a fluorescein (fam) is attached. when the dna polymerase is introduced, it will bind to the 3'-end of the probe and catalyze the extension reaction, resulting in the formation of stacked guanines, which will instantly quench the fluorescence of fam through photoelectron transfer. the method can accurately quantify the activity of the klenow fragment of escherichia coli dna polymerase i with the exonuclease activity inactivated (kf(-)) in 3 min with a detection limit down to 3.7 pm, which is much faster and more sensitive than the existing technology in monitoring the polymerization in bulk reaction. moreover, the smart probes could be used to determine the kinetics of dntp misincorporation and single nucleotide extension by proper design of the sequence. the method is universally adaptive to any fluorescence spectrometer and offers a very convenient and cost-effective way for characterization of the fine kinetic procedures in dna polymerization. (c) 2009 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 类目[WOS] | biophysics ; biotechnology & applied microbiology ; chemistry, analytical ; electrochemistry ; nanoscience & nanotechnology |
| 研究领域[WOS] | biophysics ; biotechnology & applied microbiology ; chemistry ; electrochemistry ; science & technology - other topics |
| 关键词[WOS] | escherichia-coli ; klenow fragment ; polymerase-i ; reverse-transcriptase ; electron-transfer ; molecular beacon ; fluorescent dyes ; assay ; residues |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000270764300006 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141276]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Peking Univ, BNLMS, Key Lab Bioorgan Chem & Mol Engn, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Chen,Zhang, Chen,Zhao, Meiping. Singly labeled smart probes for real-time monitoring of the kinetics of dNTP misincorporation and single nucleotide extension in DNA intra-molecular polymerization[J]. biosensors & bioelectronics,2009,25(2):301-305. |
| APA | Song, Chen,Zhang, Chen,&Zhao, Meiping.(2009).Singly labeled smart probes for real-time monitoring of the kinetics of dNTP misincorporation and single nucleotide extension in DNA intra-molecular polymerization.biosensors & bioelectronics,25(2),301-305. |
| MLA | Song, Chen,et al."Singly labeled smart probes for real-time monitoring of the kinetics of dNTP misincorporation and single nucleotide extension in DNA intra-molecular polymerization".biosensors & bioelectronics 25.2(2009):301-305. |
入库方式： OAI收割
来源：大连化学物理研究所
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