Hydrophilic azaspiroalkenes as robust bioorthogonal reporters.
Hydrophilic azaspiroalkenes as robust bioorthogonal reporters.
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DOI:
10.1039/c8cc07432a
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发表时间:
2018-12-11
期刊:
影响因子:
--
通讯作者:
Lin Q
中科院分区:
文献类型:
--
作者:
An P ;Wu HY ;Lewandowski TM ;Lin Q
Two hydrophilic spiroalkenes, azaspiro[2.3]hex-1-ene and azaspiro[2.4]hept-1-ene, were designed and synthesized. Compared to the previously reported spiro[2.3]hex-1-ene, the azaspiroalkenes exhibited greater water solubility and reactivity as dipolarophiles in the photoindued tetrazale-alkene cycloaddition reaction. In addition, an azaspiro[2.3]hex-1-ene-containing amino acid, AsphK, was found to be charged by an engineered pyrrolysyl-tRNA synthetase into proteins via amber codon suppression in E. coli as well as in mammalian cells. Highly strained hydrophilic bioorthogonal reporters, azaspiro[2.3]hex-1-ene and azaspiro[2.4]hept-1-ene, were synthesized and characterized.
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