Abstract
Catalytically active DNA oligomers (or DNAzymes) offer a broad spectrum of functions as well as applications. Although known for over two decades, the DNAzyme's mode-of-actions are still poorly understood, mainly due to lack of high-resolution structural insights. Due to their molecular size, structural flexibility, and dynamic interactions with metal-ion cofactors, solution nuclear magnetic resonance spectroscopy (NMR) can serve as optimal tool to obtain mechanistic insights of DNAzymes. In this respect, nearly all states of the DNAzyme and its substrate during the catalytic cycle are accessible. The instructions and protocols provided in the following may assist the initial steps of an NMR-based characterization of DNAzymes. To reduce the initial setup requirements and foster exciting new research projects, the discussed approaches focus on experiments that do not require cost-intensive isotope labeling strategies.
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