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.
中科院分区:
文献类型:
--
作者:
Uttamapinant, Chayasith;Tangpeerachaikul, Anupong;Grecian, Scott;Clarke, Scott;Singh, Upinder;Slade, Peter;Gee, Kyle R.;Ting, Alice Y.
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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