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Molecules 2018, 23(7), 1662; https://doi.org/10.3390/molecules23071662

Recent Development of Genetic Code Expansion for Posttranslational Modification Studies

1
Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA
2
Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA
3
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
*
Author to whom correspondence should be addressed.
Received: 25 June 2018 / Revised: 3 July 2018 / Accepted: 5 July 2018 / Published: 8 July 2018
(This article belongs to the Special Issue Design in Synthetic Biology)
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Abstract

Nowadays advanced mass spectrometry techniques make the identification of protein posttranslational modifications (PTMs) much easier than ever before. A series of proteomic studies have demonstrated that large numbers of proteins in cells are modified by phosphorylation, acetylation and many other types of PTMs. However, only limited studies have been performed to validate or characterize those identified modification targets, mostly because PTMs are very dynamic, undergoing large changes in different growth stages or conditions. To overcome this issue, the genetic code expansion strategy has been introduced into PTM studies to genetically incorporate modified amino acids directly into desired positions of target proteins. Without using modifying enzymes, the genetic code expansion strategy could generate homogeneously modified proteins, thus providing powerful tools for PTM studies. In this review, we summarized recent development of genetic code expansion in PTM studies for research groups in this field. View Full-Text
Keywords: genetic code expansion; noncanonical amino acid; unnatural amino acid; posttranslational modification; protein acetylation; protein phosphorylation; protein methylation; protein oxidation genetic code expansion; noncanonical amino acid; unnatural amino acid; posttranslational modification; protein acetylation; protein phosphorylation; protein methylation; protein oxidation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Chen, H.; Venkat, S.; McGuire, P.; Gan, Q.; Fan, C. Recent Development of Genetic Code Expansion for Posttranslational Modification Studies. Molecules 2018, 23, 1662.

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