Quantitative variations of the mitochondrial proteome and phosphoproteome during fermentative and respiratory growth in Saccharomyces cerevisiae

The yeast Saccharomyces cerevisiae is a facultative aerobe able to adapt its metabolism according to the carbon substrate. The mechanisms of these adaptations involve at least partly the mitochondria but are not yet well understood. To address the possible role of protein phosphorylation event in their regulation, it is necessary in a first instance to determine precisely the phosphorylation sites that show changes depending on the carbon source. In this aim we performed an overall quantitative proteomic and phosphoproteomic study of isolated mitochondria extracted from yeast grown on fermentative (glucose or galactose) and respiratory (lactate) media.