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A strain of Saccharomyces cerevisiae lacking the GPD2 gene, encoding one of the glycerol-3-phosphate dehydrogenases, grows slowly under anaerobic conditions, due to reductive stress caused by the accumulation of cytoplasmic NADH. We used 2D-PAGE to study the effect on global protein expression of reductive stress in the anaerobically grown gpd2Δ strain. The most striking response was a strongly elevated...
When deprived of iron, Saccharomyces cerevisiae rearranges its metabolic flux towards increased glycerol production. This work examines the role and regulation of GPD1 and GPD2, encoding two isoforms of glycerol 3-phosphate dehydrogenase, in glycerol production during iron starvation. The two genes respond differently on transfer of cells to iron-limited conditions. Whereas the expression of GPD2...
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