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Fluorescent labeling of tetracysteine-tagged proteins in intact cells
Open accessAbstract
In this paper, we provide a general protocol for labeling proteins with the membrane-permeant fluorogenic biarsenical dye fluorescein arsenical hairpin binder–ethanedithiol (FlAsH-EDT2). Generation of the tetracysteine-tagged protein construct by itself is not described, as this is a protein-specific process. This method allows site-selective labeling of proteins in living cells and has been applied to a wide variety of proteins and biological problems. We provide here a generally applicable labeling procedure and discuss the problems that can occur as well as general considerations that must be taken into account when designing and implementing the procedure. The method can even be applied to proteins with expression below 1 pmol mg−1 of protein, such as G protein–coupled receptors, and it can be used to study the intracellular localization of proteins as well as functional interactions in fluorescence resonance energy transfer experiments. The labeling procedure using FlAsH-EDT2 as described takes 2–3 h, depending on the number of samples to be processed.
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Cites
Bioorthogonal Chemistry: Fishing for Selectivity in a Sea of Functionality
Sletten, E. M., & Bertozzi, C. R. (2009) · Angewandte Chemie International Edition · doi:10.1002/anie.200900942 · Cited by 3,165
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Shu, X., Lev-Ram, V., Deerinck, T. J., Qi, Y., Ramko, E. B., Davidson, M. W., Jin, Y., Ellisman, M. H., & Tsien, R. Y. (2011) · PLoS Biology · doi:10.1371/journal.pbio.1001041 · Cited by 827
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Metadata
- Authors
- Hoffmann, C., Gaietta, G., Zürn, A., Adams, S. R., Terrillon, S., Ellisman, M. H., Tsien, R. Y., & Lohse, M. J.
- Venue
- Nature Protocols
- Published
- 2010-09-23
- Volume
- 5
- Issue
- 10
- Pages
- 1666-1677
- ISSN
- 1750-2799 (ISSN-L)
- 1754-2189
- OpenAlex
- W2035460066
- Cited by
- 213
- References
- 1
- FWCI
- 7.83
- Type
- journal article
- Language
- en
- Open access
- green
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- Hoffmann, C., Gaietta, G., Zürn, A., Adams, S. R., Terrillon, S., Ellisman, M. H., Tsien, R. Y., & Lohse, M. J. (2010). Fluorescent labeling of tetracysteine-tagged proteins in intact cells. Nature Protocols. https://doi.org/10.1038/nprot.2010.129
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