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. 1980 Dec;2(3):201-5.
doi: 10.1007/BF00435686.

Loss of 2 um DNA from Saccharomyces cerevisiae transformed with the chimaeric plasmid pJDB219

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Loss of 2 um DNA from Saccharomyces cerevisiae transformed with the chimaeric plasmid pJDB219

M J Dobson et al. Curr Genet. 1980 Dec.

Abstract

Two plasmids containing Saccharomyces cerevisiae 2 µm DNA sequences and the S. cerevisiae LEU2 gene have been found to display incompatibility with 2 µm DNA; in the presence of the LEU2 plasmids, 2 µm DNA can be lost. The LEU2 plasmids can be lost spontaneously after (and before) 2 µm DNA loss has occurred, so that strains completely lacking 2 µm DNA sequences can be obtained routinely.

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