Transcription factor beacons for the quantitative detection of DNA binding activity.

Transcription factor beacons for the quantitative detection of DNA binding activity.
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DOI:
10.1021/ja204775k
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发表时间:
2011-09-07
影响因子:
15
通讯作者:
Plaxco, Kevin W.
Plaxco, Kevin W.
中科院分区:
化学1区
文献类型:
--
作者:
Vallee-Belisle, Alexis;Bonham, Andrew J.;Reich, Norbert O.;Ricci, Francesco;Plaxco, Kevin W.

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开发方便、实时的探针来监测生物样品中的蛋白质功能是后基因组时代的一个重要挑战。作为回应,我们在这里介绍“转录因子信标”,结合激活的荧光DNA探针,信号的存在下,特定的DNA结合活动。作为原理的证明,我们提出了用于快速、灵敏地检测三种转录因子(TATA结合蛋白、Myc-Max和NF-κB)的信标,并直接在粗核提取物中测量结合活性。
The development of convenient, real-time probes for monitoring protein function in biological samples represents an important challenge of the postgenomic era. In response, we introduce here “transcription factor beacons,” binding-activated fluorescent DNA probes that signal the presence of specific DNA-binding activities. As a proof of principle, we present beacons for the rapid, sensitive detection of three transcription factors (TATA Binding Protein, Myc-Max, and NF-κB), and measure binding activity directly in crude nuclear extracts.
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