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Gene. 1986;46(2-3):237-45.

Construction of LYS2 cartridges for use in genetic manipulations of Saccharomyces cerevisiae.


Linker arrays were added to the 5' and 3' boundaries of the Saccharomyces cerevisiae LYS2 gene, which allow the generation of 18 LYS2 cartridges with different sticky ends. As it was necessary to define the beginning and the end of the approx. 4.5-kb LYS2 gene, we sequenced 1 kb of its 5' and 1.5 kb of its 3' region and mapped the mRNA start point. The open reading frame (ORF) found by this analysis was proven to be the LYS2 ORF by exchanging the sequences upstream from the presumptive ATG with the S. cerevisiae CYC1 promoter and subsequent demonstration of LYS2 expression in vivo. The proper functioning of the LYS2 cartridges was demonstrated by the transformation of lys2 mutant strains to Lys+ prototrophy using plasmids furnished with a LYS2 cartridge.

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