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

The Zygosaccharomyces rouxii strain CBS732 contains only one copy of the HOG1 and the SOD2 genes.

The osmotolerant yeast Zygosaccharomyces rouxii CBS732 contains only one copy of the ZrHOG1 and ZrSOD2-22 genes. Both genes were cloned and sequenced (Acc. Nos. AJ132606 and AJ252273, respectively) and their sequences were compared to homologous pairs of genes from Z. rouxii ATCC42981 (genes Z-HOG1, Z-HOG2, Z-SOD2, Z-SOD22). The CBS732 ZrHog1p is shorter than its ATCC42981 counterparts (380 aa residues vs. 407 and 420 aa, respectively) and is more similar to ATCC42981 Z-Hog2p than to Z-Hog1p. Also its promoter region corresponds to that one of Z-HOG2. The CBS732 ZrHOG1 promoter region is recognised by Saccharomyces cerevisiae, and the gene product (MAP kinase ZrHog1p) presence fully complements the osmosensitivity of a S. cerevisiae hog1 mutant strain. The CBS ZrSOD2-22 gene is highly similar to ATCC42981 Z-SOD2 but it contains also a segment of 15 aa residues specific for Z-SOD22. Z. rouxii ZrSod2-22 Na(+)/H(+) antiporter expressed in S. cerevisiae shows better activity toward toxic Na(+) and Li(+) cations than does S. cerevisiae's own Nha1 antiporter, and is efficient in improving the halotolerance of some S. cerevisiae wild types.[1]


  1. The Zygosaccharomyces rouxii strain CBS732 contains only one copy of the HOG1 and the SOD2 genes. Kinclová, O., Potier, S., Sychrová, H. J. Biotechnol. (2001) [Pubmed]
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