Fast, cell-compatible click chemistry with copper-chelating azides for biomolecular labeling.

Fast, cell-compatible click chemistry with copper-chelating azides for biomolecular labeling.
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DOI:
10.1002/anie.201108181
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发表时间:
2012-06-11
影响因子:
16.6
通讯作者:
Ting, Alice Y.
Ting, Alice Y.
中科院分区:
化学1区
文献类型:
--
作者:
Uttamapinant, Chayasith;Tangpeerachaikul, Anupong;Grecian, Scott;Clarke, Scott;Singh, Upinder;Slade, Peter;Gee, Kyle R.;Ting, Alice Y.

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我们报告说,叠氮化物铜螯合能力进行更快的“点击化学”(铜加速叠氮化物-炔环加成,或CuAAC)比非螯合叠氮化物在各种生物相容性条件下。这种动力学增强使我们能够在活细胞表面上进行位点特异性蛋白质标记,仅使用10-40 µM CuI/II,并且比使用先前报道的最佳活细胞相容性CuAAC标记条件获得的信号高得多。检测灵敏度也增加了CuAAC检测的炔修饰的蛋白质和RNA标记的代谢喂养。
We report that azides capable of copper-chelation undergo much faster “Click chemistry” (copper-accelerated azide-alkyne cycloaddition, or CuAAC) than nonchelating azides under a variety of biocompatible conditions. This kinetic enhancement allowed us to perform site-specific protein labeling on the surface of living cells with only 10–40 µM CuI/II and much higher signal than could be obtained using the best previously-reported live-cell compatible CuAAC labeling conditions. Detection sensitivity was also increased for CuAAC detection of alkyne-modified proteins and RNA labeled by metabolic feeding.
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