Cited by 54Fungal and yeast genetics researchBacterial Genetics and BiotechnologyYeasts and Rust Fungi Studies

Functional analyses of PAU genes in Saccharomyces cerevisiae

Luo, Zongli, van Vuuren, Hennie J. J.·2009·Microbiology

Abstract

PAU genes constitute the largest gene family in Saccharomyces cerevisiae, with 24 members mostly located in the subtelomeric regions of chromosomes. Little information is available about PAU genes, other than expression data for some members. In this study, we systematically compared the sequences of all 24 members, examined the expression of PAU3, PAU5, DAN2, PAU17 and PAU20 in response to stresses, and investigated the stability of all Pau proteins. The chromosomal localization, synteny and sequence analyses revealed that PAU genes could have been amplified by segmental and retroposition duplication through mechanisms of chromosomal end translocation and Ty-associated recombination. The coding sequences diverged through nucleotide substitution and insertion/deletion of one to four codons, thus causing changes in amino acids, truncation or extension of Pau proteins. Pairwise comparison of non-coding regions revealed little homology in flanking sequences of some members. All 24 PAU promoters contain a TATA box, and 22 PAU promoters contain at least one copy of the anaerobic response element and the aerobic repression motif. Differential expression was observed among PAU3, PAU5, PAU17, PAU20 and DAN2 in response to stress, with PAU5 having the highest capacity to be induced by anaerobic conditions, low temperature and wine fermentations. Furthermore, Pau proteins with 124 aa were less stable than those with 120 or 122 aa. Our results indicate that duplicated PAU genes have been evolving, and the individual Pau proteins might possess specific roles for the adaptation of S. cerevisiae to certain environmental stresses.

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Crossref · 10.1099/mic.0.030726-0

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  • Mot3 represses the expression of hypoxic, DAN/TIR/PAU and ERG genes including ERG2, ERG6 and ERG9.

    “In addition, to limit Ecm22 function [75], the transcriptional factor Mot3 also represses the expression of hypoxic, DAN/TIR/PAU and ERG genes including ERG2, ERG6 and ERG9 (Figure 3A) [86,89,90,91,92,93].”

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Authors
Luo, Z., & van Vuuren, H. J. J.
Affiliations
  • University of British Columbia (CA)
  • Wine Research Centre, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
Venue
Microbiology
Published
2009-12-01
Volume
155
Issue
12
Pages
4036-4049
ISSN
  • 1350-0872 (ISSN-L)
  • 1465-2080
OpenAlex
W2125683634
Cited by
54
References
39
Citations by year
2025: 2 · 2024: 6 · 2023: 4 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 7 · 2018: 4 · 2017: 5 · 2016: 2 · 2015: 3 · 2014: 3 · 2013: 4 · 2012: 1
FWCI
0.94
Type
journal article
Language
en
Open access
closed
Locations
  • Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Natural Sciences and Engineering Research Council of Canada
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Yeasts and Rust Fungi Studies
Keywords
Saccharomyces cerevisiae, subtelomeric regions, gene family evolution, segmental duplication, retroposition, stress response, anaerobic conditions, cold stress, wine fermentation, protein stability, promoter analysis
MeSH terms
Amino Acid Sequence, Base Sequence, Chromosome Mapping, DNA, Fungal, Genes, Fungal, Multigene Family, Molecular Sequence Data, Phylogeny, Saccharomyces cerevisiae, Sequence Homology, Nucleic Acid, Stress, Physiological, Gene Expression, Sequence Homology, Amino Acid, Evolution, Molecular, Gene Duplication, 5' Flanking Region, Saccharomyces cerevisiae Proteins, Protein Stability

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