Yeast genes fused to beta-galactosidase in Escherichia coli can be expressed normally in yeast.


A plasmid was constructed that allows the selection in vivo of gene fusions between the Escherichia coli beta-galactosidase gene and the yeast (Saccharomyces cerevisiae) URA3 gene. A large yeast DNA fragment containing the URA3 gene was placed upstream of an amino-terminally deleted version of the lacZ gene. The plasmid vehicle contains sequences that allow… (More)


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