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    Université de Fribourg

    Mitochondrial genomic dysfunction causes dephosphorylation of SCH9 in the yeast Saccharomyces cerevisiae

    Kawai, Shigeyuki ; Urban, Jörg ; Piccolis, Manuele ; Panchaud, Nicolas ; De Virgilio, Claudio ; Loewith, Robbie

    In: Eukaryotic Cell, 2011, vol. 10, no. 10, p. 1367-1369

    TORC1-dependent phosphorylation of Saccharomyces cerevisiae Sch9 was dramatically reduced upon exposure to a protonophore or in respiration-incompetent ρ⁰ cells but not in respiration-incompetent pet mutants, providing important insight into the molecular mechanisms governing interorganellar signaling in general and retrograde signaling in particular

    Université de Fribourg

    Caffeine extends yeast lifespan by targeting TORC1

    Wanke, Valeria ; Cameroni, Elisabetta ; Uotila, Aino ; Piccolis, Manuele ; Urban, Jörg ; Loewith, Robbie ; De Virgilio, Claudio

    In: Molecular Microbiology, 2008, vol. 69, no. 1, p. 277 - 285

    Dietary nutrient limitation (dietary restriction) is known to increase lifespan in a variety of organisms. Although the molecular events that couple dietary restriction to increased lifespan are not clear, studies of the model eukaryote Saccharomyces cerevisiae have implicated several nutrient-sensitive kinases, including the target of rapamycin complex 1 (TORC1), Sch9, protein kinase A (PKA) and...