Biotech Studies
2020, Vol 29, Num, 1 (Pages: 008-017)
Meta-analysis of transcriptome data on oxidative stress response in Saccharomyces cerevisiae cells underlines regulation of carbon, redox and glutathione metabolism
Ezgi Tanıl 1 ,Burcu Şirin 1 ,Emrah Nikerel 1
1 Yeditepe University, Faculty of Engineering, Department of Genetics and Bioengineering, 34755 Ataşehir, Istanbul, Turkey
DOI :
10.38042/biost.2020.29.01.02
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Environmental stress adversely affects living systems within medical as well as
industrial context, causing either diseases or resulting in e.g. underperforming
production processes. In particular oxidative stress in industrial biotechnology context,
manifested as the imbalance in generation of reactive oxygen species and antioxidant
capacity causes yield losses both in growth and production in baker`s yeast. Oxidative
stress response studies for Saccharomyces cerevisiae at transcriptome level are using
either direct induction methods such as treatment with peroxides or indirect induction
methods such as treatment with drugs or toxins. To extract common response
mechanisms integrating all conditions is of high value. To this end, this study collects,
processes and aggregates published transcriptome data from studies that examined
the response using both direct and indirect oxidative stress induction methods.
Interestingly, carbon metabolism, oxidation reduction processes and glutathione
metabolic process were found to be the common mechanisms involved in oxidative
stress response. However, ion homeostasis and hexose transport mechanisms have
been shown to be affected from direct induction using peroxides. This result illustrates
bioinformatics analysis for large, aggregated transcriptome datasets, as a
steppingstone for finding common features and further metabolic engineering targets
were developed.
Keywords :
Oxidative stress Rank aggregation Saccharomyces cerevisiae Meta-analysis Differential gene expression