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Article Abstract
Development of FokI-based engineered nucleases has been a platform technology that enables creation of novel sequence-specific nucleases as well as structure-specific nucleases. Z-DNA-specific nucleases have been constructed by fusing a Z-DNA-binding domain to the nuclease domain of FokI (F). In particular, Zαα, an engineered Z-DNA-binding domain with a high affinity, is an ideal fusion partner to generate a highly efficient Z-DNA-specific cutter. Here, we describe construction, expression, and purification of Zαα-FOK (Zαα-F) nuclease in detail. In addition, Z-DNA-specific cleavage is demonstrated by the use of Zαα-FOK.
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