The Fermentation Facility is a lab offering specialist services for Systems Biology studies, which focus on complex interactions in biological systems and often require quantitative and reproducible data at the levels of genome, transcriptome, proteome and metabolome, to model how a system works (see Prof. Steve Oliver’s web page and reference 1). Additionally, the facility offers research support to different departments of the University for biochemical/structural studies, where scaling-up of protein expression is required in different expression systems, including in mammalian cells (Fig.1).
Fig.1 In an analytical fermentation system, all the growth parameters, such as temperature, pH, dissolved oxygen level, growth rate or total biomass can be controlled reproducibly.
Fig.2 The proposed model for Gis1-dependent transcription upon nutrient starvation or rapamycin treatment. EF--epigenetic factors; ?--missing links.
The independent research of the lab focuses on how the transition of yeast cells into stationary phase is regulated. Previously, we have identified a number of yeast genes whose expression is significantly up-regulated following starvation for different macronutrients (2). Expression of some of these genes is strongly dependent on the Gis1 transcriptional factor and also on Rim15 and Sch9 kinases. The aim of the research is to understand how Tor and PKA signalling pathways regulate the activity of the Gis1 transcription factor through their downstream kinases and other epigenetic factors (Fig.2).
Lab members
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References
Castrillo JI, Zeef LA, Hoyle DC, Zhang N, Hayes A, Gardner DCJ, Cornell MJ, Petty J, Hakes L, Wardleworth L, Rash B, Brown M, Dunn WB, Broadhurst D, Hart SR, Jackson CS, O'Donoghue K, Hester S, Dunkley T, Swainston N. Li P, Gaskell SJ, Paton NW, Lilley KS, Kell DB, Oliver SG (2007) Growth control of the eukaryote cell: A systems biology study in yeast. J. Biol. 6:4 (25 pages).
Wu J, Zhang N, Hayes A, Panoutsopoulou K and Oliver SG (2004) Global analysis of nutrient control of gene expression during growth and starvation in Saccharomyces cerevisiae. Proceedings of National Academy of Sciences USA. 101 (9): 3148–53.