Monitoring methionine sulfoxide with stereospecific mechanism-based fluorescent sensors

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Monitoring methionine sulfoxide with stereospecific mechanism-based fluorescent sensors

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Title: Monitoring methionine sulfoxide with stereospecific mechanism-based fluorescent sensors
Author: Tarrago, Lionel; Péterfi, Zalán; Lee, Byung Cheon; Michel, Thomas; Gladyshev, Vadim N.

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Citation: Tarrago, Lionel, Zalán Péterfi, Byung Cheon Lee, Thomas Michel, and Vadim N. Gladyshev. 2015. “Monitoring methionine sulfoxide with stereospecific mechanism-based fluorescent sensors.” Nature chemical biology 11 (5): 332-338. doi:10.1038/nchembio.1787. http://dx.doi.org/10.1038/nchembio.1787.
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Abstract: Methionine can be reversibly oxidized to methionine sulfoxide (MetO) under physiological and pathophysiological conditions, but its use as a redox marker suffers from the lack of tools to detect and quantify MetO within cells. In this work, we created a pair of complementary stereospecific genetically-encoded mechanism-based ratiometric fluorescent sensors of MetO by inserting a circularly yellow fluorescent protein between yeast methionine sulfoxide reductases and thioredoxins. The two sensors, named MetSOx and MetROx for their ability to detect S and R-forms of MetO, respectively, were utilized for targeted analysis of protein oxidation, regulation and repair, as well as for monitoring MetO in bacterial and mammalian cells, analyzing compartment-specific changes in MetO, and examining responses to physiological stimuli.
Published Version: doi:10.1038/nchembio.1787
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4402147/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:23845301
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