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    The DNAzyme activity of G-quadruplex/hemin in mitochondria has not been characterized. Herein, we report an unexpected difference in the DNAzyme activity between in vitro assays and in mitochondria. Molecular dynamic simulations illustrate how the interaction of the G-quadruplex with hemin may modulate the DNAzyme activity. These results might facilitate a better understanding of the catalytic mechanism of the DNAzyme and help the rational design of stable and active DNAzymes suitable for intracellular catalysis.

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    Jiayu Zhang, Xiaofang Song, Miaoren Xia, Yanan Xue, Mengxue Zhou, Lifo Ruan, Huiru Lu, Jun Chen, Dongqi Wang, Zhifang Chai, Yi Hu. The proximity of the G-quadruplex to hemin impacts the intrinsic DNAzyme activity in mitochondria. Chemical communications (Cambridge, England). 2021 Mar 25;57(24):3038-3041

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    PMID: 33624637

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