Genetically encoded cyclopropene directs rapid, photoclick-chemistry-mediated protein labeling in mammalian cells.

Genetically encoded cyclopropene directs rapid, photoclick-chemistry-mediated protein labeling in mammalian cells.
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DOI:
10.1002/anie.201205352
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发表时间:
2012-10-15
影响因子:
16.6
通讯作者:
Lin, Qing
Lin, Qing
中科院分区:
化学1区
文献类型:
--
作者:
Yu, Zhipeng;Pan, Yanchao;Wang, Zhiyong;Wang, Jiangyun;Lin, Qing

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在E.大肠杆菌以及增强的绿色荧光蛋白在哺乳动物细胞中通过琥珀密码子抑制采用正交氨酰-tRNA合成酶/tRNACUA对。由于其高环应变,环丙烯在光点击反应中表现出快速反应动力学(高达58 ± 16 M−1 s−1),并允许在哺乳动物细胞中快速(~ 2 min)生物正交标记蛋白质。
Genetic incorporation of a cyclopropene amino acid, Nε-(1-methylcycloprop-2-enecarboxamido)-lysine (CpK), into sperm whale myoglobin site-specifically in E. coli as well as enhanced green fluorescent protein in mammalian cells was achieved through amber codon suppression employing an orthogonal aminoacyl-tRNA synthetase/tRNACUA pair. Because of its high ring strain, cyclopropene exhibited fast reaction kinetics (up to 58 ± 16 M−1 s−1) in the photoclick reaction and allowed rapid (~ 2 min) bioorthogonal labeling of proteins in mammalian cells.
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