A general method to fine-tune fluorophores for live-cell and in vivo imaging.

A general method to fine-tune fluorophores for live-cell and in vivo imaging.
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DOI:
10.1038/nmeth.4403
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发表时间:
2017-10
期刊:
影响因子:
48
通讯作者:
Lavis LD
Lavis LD
中科院分区:
生物学1区
文献类型:
--
作者:
Grimm JB;Muthusamy AK;Liang Y;Brown TA;Lemon WC;Patel R;Lu R;Macklin JJ;Keller PJ;Ji N;Lavis LD

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Pushing the frontier of fluorescence microscopy requires the design of enhanced fluorophores with finely tuned properties. We recently discovered that incorporation of four-membered azetidine rings into classic fluorophore structures elicits substantial increases in brightness and photostability, resulting in the ‘Janelia Fluor’ (JF) series of dyes. Here, we refine and extend this strategy, showing that incorporation of 3-substituted azetidine groups allows rational tuning of the spectral and chemical properties with unprecedented precision. This strategy yields a palette of new fluorescent and fluorogenic labels with excitation ranging from blue to the far-red with utility in cells, tissue, and animals.
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