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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

A short region from the LEU2 gene of Saccharomyces cerevisiae functions as an ARS in the yeast Saccharomyces exiguus Yp74L-3.

We examined the autonomously replicating sequence (ARS) activity of some fragments derived from the LEU2 region of Saccharomyces cerevisiae onto Saccharomyces exiguus Yp74L-3. A DNA fragment functioning as an ARS in S. exiguus, but not in S. cerevisiae, was shown to exist. The ARS activity for S. exiguus was reduced by the 2-microm plasmid origin of S. cerevisiae when both elements coexisted on a single circular plasmid. Analysis of ARS activity with the PCR products from the fragment revealed that the ARS-acting sequence was located in the 3'-terminal area of the transcribed region of the LEU2 gene of S. cerevisiae. It is suggested that the ARS recognition system in S. exiguus is significantly different from that of S. cerevisiae.[1]


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