Repetitive lagging strand DNA synthesis by the bacteriophage T4 replisome

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10 Scopus citations


Our studies on the T4 replisome build on the seminal work from the Alberts laboratory. They discovered essentially all the proteins that constitute the T4 replisome, isolated them, and measured their enzymatic activities. Ultimately, in brilliant experiments they reconstituted in vitro a functioning replisome and in the absence of structural information created a mosaic as to how such a machine might be assembled. Their consideration of the problem of continuous leading strand synthesis opposing discontinuous lagging strand synthesis led to their imaginative proposal of the trombone model, an illustration that graces all textbooks of biochemistry. Our subsequent work deepens their findings through experiments that focus on defining the kinetics, structural elements, and protein-protein contacts essential for replisome assembly and function. In this highlight we address when Okazaki primer synthesis is initiated and how the primer is captured by a recycling lagging strand polymerase-problems that the Alberts laboratory likewise found mysterious and significant for all replisomes.

Original languageEnglish (US)
Pages (from-to)1070-1074
Number of pages5
JournalMolecular BioSystems
Issue number11
StatePublished - 2008

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Molecular Biology


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