Abstract
Our previous work showed that NADP+-dependent glutamate dehydrogenase from K. marxianus behaves similarly to its counterpart in S. cerevisiae. It suggested that the ammonia assimilation pathway might be different between K. marxianus and the genetic closed species K. lactis. In the present work, we analyzed the genetic similarity among the GDH gene family in K. marxianus and closed yeasts. Specific primers for GDH genes were designed based on the K. marxianus sequences deposited in the Genolevures Database. One of them, for the KmGDH2 gene, proved to be specific for K. marxianus DNA samples, which confirmed the molecular identification of environmental yeast isolates, and can be proposed for rapid screening of this yeast from environmental samples. The nucleotide sequence revealed that KmGDH2 belongs to the S. cerevisiae GDH1 gene family together with KlGDH gene.
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