Genetic introduction of a diketone-containing amino acid into proteins |
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| Authors: | Zeng Huaqiang Xie Jianming Schultz Peter G |
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| Institution: | Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. |
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| Abstract: | An orthogonal tRNA/aminoacyl-tRNA synthetase pair was evolved that makes possible the site-specific incorporation of an unnatural amino acid bearing a beta-diketone side chain into proteins in Escherichia coli with high translational efficiency and fidelity. Proteins containing this unnatural amino acid can be efficiently and selectively modified with hydroxylamine derivatives of fluorophores and other biophysical probes. |
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