Functional Dissection of the Bacterial Replisome

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This project aims to develop and use a suite of new single-molecule techniques to define how the bacterial replisome really works. The replisome is the machine that makes DNA in cells that are about to divide. Replisomes have many mechanistic challenges as they work to copy both strands of DNA at the same time. Many years of classic biochemical studies have worked out how many of these challenges are overcome. In recent years, the use of single-molecule biophysical techniques has begun to challenge many aspects of the elegant textbook view of replisome function. This approach is expected to reveal how synthesis of the two DNA strands in different directions at the same time is coupled together and how timing mechanisms work.