Abstract
The technical advances in developing artificial endonucleases, such as zinc finger nucleases (ZFNs), have opened a wide field of applications in the genome engineering arena, including the therapeutic correction of mutated genes in the human genome. Gene editing frequencies of up to 50% in human cells under non-selective conditions reveal the power of the ZFN technology. Activity and toxicity of ZFNs are determined by a number of parameters, including the specificity of DNA binding, the kinetics of dimerization of the two ZFN subunits, and the catalytic activity. In order to investigate these parameters individually, a cell-free system that models these reactions is essential. Here, we present a simple and fast method for the functional testing of ZFNs in vitro.
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Acknowledgments
The authors thank Anton McCaffrey and Thomas J. Cradick for sharing their know-how on ZFN in vitro cleavage reactions and Tatjana Cornu for carefully reading this manuscript. This chapter is based on work supported by grant LSHB-CT2006-037783 ZNIP of the European Commission’s 6th Framework Programme.
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Cathomen, T., Şöllü, C. (2010). In Vitro Assessment of Zinc Finger Nuclease Activity. In: Mackay, J., Segal, D. (eds) Engineered Zinc Finger Proteins. Methods in Molecular Biology, vol 649. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-60761-753-2_13
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DOI: https://doi.org/10.1007/978-1-60761-753-2_13
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