SGD Paper 
Kojo H, et al. (1981) Yeast 2-micrometer plasmid DNA replication in vitro: origin and direction. Proc Natl Acad Sci U S A 78(12):7261-5
Abstract: Most yeast strains harbor extrachromosomal 2-micrometer DNA, and this DNA synthesis, like nuclear DNA replication, is strictly under cell cycle control. A soluble extract of yeast Saccharomyces cerevisiae carries out semiconservative replication of added 2-micrometer DNA and Escherichia coli chimeric plasmids containing the 2-micrometer DNA. Replication is initiated on 10% of the DNA, and one round of replication is completed. The major products in early stages of replication are theta ("eye") forms which originate 140 +/- 50 nucleotides within one of the 599-base-pair inverted repeats of 2-micrometer DNA. Their replication is bidirectional and discontinuous. Extracts prepared from the cell division cycle mutant cdc8 show temperature-sensitive 2-micrometer DNA synthesis in vitro, suggesting that this in vitro system resembles in vivo 2-micrometer plasmid DNA replication. This system should provide a useful assay for the purification and characterization of yeast DNA replication proteins.
| Status: Published | Type: Journal Article | PubMed ID: 7038673 |
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| Topics | Genes linked to topics |
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| CDC8 | |
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