期刊
CURRENT OPINION IN CHEMICAL BIOLOGY
卷 21, 期 -, 页码 136-143出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cbpa.2014.07.012
关键词
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The ability to introduce any chemical probe to any endogenous target protein in its native environment, that is in cells and in vivo, is anticipated to provide various new exciting tools for biological and biomedical research. Although still at the prototype stage, the ligand-directed tosyl (LDT) chemistry is a novel type of affinity labeling technique that we developed for such a dream. This chemistry allows for modifying native proteins by various chemical probes with high specificity in various biological settings ranging from in vitro (in test tubes) to in living cells and in vivo. Since the first report, the list of proteins that are successfully labeled by the LDT chemistry has been increasing. A growing number of studies have demonstrated its utility to create semisynthetic proteins directly in cellular contexts. The in situ generated semisynthetic proteins are applicable for various types of analysis and imaging of intracellular biological processes. In this review, we summarize the basic properties of the LDT chemistry and its applications toward in situ engineering and analysis of native proteins in living systems. Current limitations and future challenges of this area are also described.
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