One of the most prominent self-labeling tags is SNAP-tag. It is an in vitro evolution product of the human DNA repair protein O (6)-alkylguanine-DNA alkyltransferase (hAGT) that reacts specifically with benzylguanine (BG) and benzylchloropyrimidine (CP) derivatives, leading to covalent labeling of SNAP-tag with a synthetic probe (Gronemeyer et al., Protein Eng Des Sel 19:309-316, 2006; Curr Opin Biotechnol 16:453-458, 2005; Keppler et al., Nat Biotechnol 21:86-89, 2003; Proc Natl Acad Sci U S A 101:9955-9959, 2004). SNAP-tag is well suited for the analysis and quantification of fused target protein using fluorescence microscopy techniques. It provides a simple, robust, and versatile approach to the imaging of fusion proteins under a wide range of experimental conditions.
CITATION STYLE
Lukinavičius, G., Reymond, L., & Johnsson, K. (2015). Fluorescent labeling of SNAP-tagged proteins in cells. Methods in Molecular Biology (Clifton, N.J.), 1266, 107–118. https://doi.org/10.1007/978-1-4939-2272-7_7
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