Synthetase polyspecificity as a tool to modulate protein function.
Synthetase polyspecificity as a tool to modulate protein function.
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DOI:
10.1016/j.bmcl.2011.09.108
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发表时间:
2011-12-15
影响因子:
2.7
通讯作者:
Schultz, Peter G.
中科院分区:
文献类型:
--
作者:
Young, Douglas D.;Jockush, Steffen;Turro, Nicholas J.;Schultz, Peter G.
关键词:
The site-specific incorporation of unnatural amino acids (UAAs) into proteins in bacteria is made possible by the evolution of aminoacyl-tRNA synthetases that selectively recognize and aminoacylate the amino acid of interest. Recently we have discovered that some of the previously evolved aaRSs display a degree of polyspecificity and are capable of recognizing multiple UAAs. Herein we report the polyspecificity of an aaRS evolved to encode a comarin containing amino acid. This polyspecificity was then exploited to introduce several UAAs into the fluorophore of GFP, altering its photophysical properties.
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