This study investigates how the DNA replication machinery copes with topological challenges. While topoisomerases resolve supercoils, the spatial limitations and rapid synthesis rate of the bacterial replisome suggest additional mechanisms, such as fork rotation. Using a modular DNA toolkit and single-molecule fluorescence microscopy, we observed replisome rotation as a means of managing topological tension. A novel imaging approach revealed dynamic behavior in the parental, leading, and lagging strands, advancing our understanding of DNA replication.
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This study investigates how the DNA replication machinery copes with topological challenges. While topoisomerases resolve supercoils, the spatial limitations and rapid synthesis rate of the bacterial replisome suggest additional mechanisms, such as fork rotation. Using a modular DNA toolkit and single-molecule fluorescence microscopy, we observed replisome rotation as a means of managing topological tension. A novel imaging approach revealed dynamic behavior in the parental, leading, and lagging...
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