Opposing roles of Ubp3-dependent deubiquitination regulate replicative life span and heat resistance

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Opposing roles of Ubp3-dependent deubiquitination regulate replicative life span and heat resistance.

The interplay between molecular chaperones, ubiquitin/deubiquitinating enzymes, and proteasomes is a critical element in protein homeostasis. Among these factors, the conserved deubiquitinase, Ubp3, has the interesting ability, when overproduced, to suppress the requirement for the major cytosolic Hsp70 chaperones. Here, we show that Ubp3 overproduction counteracts deficiency of Hsp70s by the r...

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Opposing roles of Ubp3-dependent deubiqutination regulates replicative life span and heat resistance

Thank you for submitting your manuscript on Ubp3 in life spans and heat resistance regulation for our editorial consideration, and please excuse the delay in getting back to you with an editorial decision. Three expert referees had agreed to review your study, but so far we have despite multiple email reminders and phone calls only received the reports from two of them. Since these two reports ...

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Loss of Ubp3 increases silencing, decreases unequal recombination in rDNA, and shortens the replicative life span in Saccharomyces cerevisiae

Ubp3 is a conserved ubiquitin protease that acts as an antisilencing factor in MAT and telomeric regions. Here we show that ubp3∆ mutants also display increased silencing in ribosomal DNA (rDNA). Consistent with this, RNA polymerase II occupancy is lower in cells lacking Ubp3 than in wild-type cells in all heterochromatic regions. Moreover, in a ubp3∆ mutant, unequal recombination in rDNA is hi...

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ژورنال

عنوان ژورنال: The EMBO Journal

سال: 2014

ISSN: 0261-4189,1460-2075

DOI: 10.1002/embj.201386822