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Université de Fribourg

The yeast cell wall protein Pry3 inhibits mating through highly conserved residues within the CAP domain

Cottier, Stéphanie ; Darwiche, Rabih ; Meyenhofer, Felix ; Debelyy, Mykhaylo O. ; Schneiter, Roger

In: Biology Open, 2020, vol. 9, no. 6, p. bio053470

Members of the CAP/SCP/TAPS superfamily have been implicated in many different physiological processes, including pathogen defense, sperm maturation and fertilization. The mode of action of this class of proteins, however, remains poorly understood. The genome of Saccharomyces cerevisiae encodes three CAP superfamily members, Pry1-3. We have previously shown that Pry1 function is required...

Università della Svizzera italiana

Sumoylation regulates the stability and nuclease activity of Saccharomyces cerevisiae Dna2

Ranjha, Lepakshi ; Levikova, Maryna ; Altmannova, Veronika ; Krejci, Lumir ; Cejka, Petr

In: Communications Biology, 2019, vol. 2, p. 174

Dna2 is an essential nuclease-helicase that acts in several distinct DNA metabolic pathways including DNA replication and recombination. To balance these functions and prevent unscheduled DNA degradation, Dna2 activities must be regulated. Here we show that Saccharomyces cerevisiae Dna2 function is controlled by sumoylation. We map the sumoylation sites to the N-terminal regulatory domain of...

Université de Fribourg

Conventional and emerging roles of the energy sensor Snf1/AMPK in Saccharomyces cerevisiae

Coccetti, Paola ; Nicastro, Raffaele ; Tripodi, Farida

In: Microbial Cell, 2018, vol. 5, no. 11, p. 482–494

All proliferating cells need to match metabolism, growth and cell cycle progression with nutrient availability to guarantee cell viability in spite of a changing environment. In yeast, a signaling pathway centered on the effector kinase Snf1 is required to adapt to nutrient limitation and to utilize alternative carbon sources, such as sucrose and ethanol. Snf1 shares evolutionary conserved...