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Semisynthesis of fluorescent metabolite sensors on cell surfaces.
- Brun, Matthias A (author)
- Griss, Rudolf (author)
- Reymond, Luc (author)
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- Tan, Kui-Thong (author)
- Peters, Ruud J R W (author)
- Vogel, Horst (author)
- Johnsson, Kai (author)
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- (creator_code:org_t)
- 2011-09-16
- 2011
- English.
- In: Journal of the American Chemical Society. - : American Chemical Society (ACS). - 0002-7863 .- 1520-5126. ; 133:40
- Journal article (peer-reviewed)
Abstract
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- Progress in understanding signal transduction and metabolic pathways is hampered by a shortage of suitable sensors for tracking metabolites, second messengers, and neurotransmitters in living cells. Here we introduce a class of rationally designed semisynthetic fluorescent sensor proteins, called Snifits, for measuring metabolite concentrations on the cell surface of mammalian cells. Functional Snifits are assembled on living cells through two selective chemical labeling reactions of a genetically encoded protein scaffold. Our best Snifit displayed fluorescence intensity ratio changes on living cells significantly higher than any previously reported cell-surface-targeted fluorescent sensor protein. This work establishes a generally applicable and rational strategy for the generation of cell-surface-targeted fluorescent sensor proteins for metabolites of interest.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
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- ref (subject category)
- art (subject category)
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- Griss, Rudolf
- Reymond, Luc
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- Johnsson, Kai
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