Reference: Pasero P, et al. (1999) In vitro DNA replication in yeast nuclear extracts. Methods 18(3):368-76, 323

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Abstract


Two assays have been developed for studying DNA replication in vitro based on nuclear extracts isolated from budding yeast cells synchronized in S phase. In the first, the template DNA for replication is provided in the form of intact yeast nuclei, usually from cells arrested in G(1). In the second assay, bacterially produced supercoiled plasmid is replicated in an S-phase nuclear extract supplemented with nucleotides and an energy-regenerating system. Semiconservative DNA replication is monitored by substitution of newly synthesized DNA with bromodeoxyuridine 5'-triphosphate (BrdUTP) and density gradient analysis. In addition, neutral-neutral two-dimensional gel analyses and, in the case of nuclei, detection of newly synthesized DNA in replication foci by DIG-dUTP incorporation can be used to monitor replication.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Pasero P, Duncker BP, Gasser SM
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